south bay operations - unirex...

South Bay OperationsFlatbeam® Lock-Nut

FlatBeamTM

LOCK-NUTTridair FlatBeam Lock-Nuts are designed to greatlyextend cycle life - 10 to 15 times longer thanconventional lock-nuts. Six flexible flat beamsprovide critical prevailing torque on the boltwithout placing abnormal wear on boltthreads. The design prevents destructive shavingof the bolt’s thread and adds life to eachbolt as well at the lock-nut.

Lock-Nuts in this catalog are covered by US Patent Number 3,702,628.All dimensions are expressed in inches.Copyright Fairchild Fasteners, 1996

The Evolution of Self-Locking NutsThe use of prevailing torque self-locking nuts inaircraft dates back more than forty-five years.During World War II millions of these nuts wereused as an alternative to lock washers, cotterpins, safety wiring and staked nuts in highvibration applications.

One of the first Government Specificationsrelease, to insure that the nuts would performproperly, was the AN-N-5. It was releasedbefore 1945.

The early designs of prevailing torque type nuts,at this time, used a non-metallic collar in the nutto provide an interface with bolt threadsto lock the nut to the bolt.

Such nut designs imposed significant weightpenalties in the aircraft and the temperaturelimitation of 250°F. curtailed maximumuse of this advancement in fastenerdesign.

Several alternate “all metaldesigns” became available inthe early 50’s, and a newspecification was released(MIL-N-25027).

Both specificatins require QualificationTests, as well as lot testing. Since thedocuments have been written with vibration as acritical element, a “Jack Hammer” test wasrequired. To assure that the self-locking devicewould hold onto the bolt, the nuts were notseated as they would be in a typical application.

Presumably this was the reason that no loadwas required on the nuts during the 15 cycletorque test that was also required and used inthe lot testing. The vibration test was only usedin the Qualification Test.

The fallacy of this presumption soon becameapparent. In 1961 a test was conducted by aGovernment agency for the purpose ofestablishing the torque tension relationships ofprevailing torque self-locking nuts. One of theconclusions of the test was, that...”repeatedinstallations of a fastener caused loosening ofthe lockring torque.”

The report results stated that, the “all metal”self-locking nuts that were tested, lost theirself-locking torque capability within just afew cycles.

Both specifications required a 15 cycle self-locking torque test on every lot. The maximumand minimum torque values, by size, had to fallwithin certain limits. But the test still requiredno seating of the nut.

In April of 1963, the National AerospaceStandards Committee released specificationNAS3350 for 450°-800°F. self-locking nuts. In theroom temp torque effectivity test, it requiresthat nuts be loaded to a seat torque - andmaximum torque values and minimum break-away torque values of MIL-N-25027 wererequired to be met. But this test is only requiredfor 15 cycles!

Studies have confirmed that many lock-nutsare seated and removed far more than fifteentimes during installation, maintenance andinspection. In AMCP706-134, the U.S. Armyreports:

“Self-locking nuts areintended to replacecotter pins, wiring, lockwashers, etc., as a meansof keeping a nut tight onits bolt. They containsome means of gripping

the threaded member so thatrelative rotation is impeded or prevented.This feature poses some problems if thenut is to be removed frequently duringmaintenance. Many specifications statethat the self-locking nuts should becapable of removal from and replace-ment on the same threaded member atleast fifteen times, but most are removedand replaced far mor often.”

Many of the lock-nuts in use today have beendegraded by reuse to where they no longerprovide the minimum locking torque requiredby government specifications.The TRIDAIR FlatBeam solution.The TRIDAIR FlatBeam lock-nut represents aradical improvement. With the unique, patentedflat beam design, the nut maintains lockingtorque values specified in MIL-N-25027through 250 seated reuse cycles - over 16times greater than other lock-nuts. This highcycle life virtually eliminates the possibility of anut losing its locking torque because of reuse, inmany cases for the life of the application.

Compare the Specifications.CEPS ETAD

DAERHTEZIS

)SDNUOPHCNI(EUQROT FO.ONDETAESSELCYC

EMITNOITARBIV

)F(.PMET.XAM .NIM GNITAES

5-N-NA 5491 82-4/1 03 7.3 enoN enoN .rh1 °052

72052-N-LIM5591

.xorppa82-4/1 03 5.3 enoN enoN

000,03selcyc

°052°054°008

0533SAN 3691 82-4/1 03 5.3 49 51000,03selcyc

°054°008

44658-N-LIMdesoporp

4891 82-4/1 03 5.3 08 05000,03selcyc

°054

maeBtalFtuN-kcoL

5891 82-4/1 03 5.3 521 052000,03selcyc

°054

Unique flexible bean design of theTridair FlatBeam Lock-Nut

Tridair Products 1

See pages 2 and 3 for Selector Guide

The design utilizes six flexible flat beams.These beams provide critical prevailing torqueon the bolt without placing abnormal wear onbolt threads. Both the nut and the bolt maintaintangential contact points so that the beamcorners avoid contact with the bolt. This preventsdestructive shaving of the bolt’s thread andadds considerably to the life of each bolt as wellas the lock-nut.

In tests, the 1/4-28 size FlatBeam Lock-Nut wasseated to 125 in. lbs. for each cycle (double theMil-Spec seating torque for this thread size). Itcompleted 250 installation and removal cyclesusing an average of just two bolts.

The Tridair flat beam lock-nut will not shave thethreads of a bolt because of the deflected beamdesign. Further, the loading of the thread by thebolt will be more evenly distributed through thethreads. Thus, it will maintain its self-lockingcapability through a much longer period.

Compare the Specifications.CEPS ETAD

DAERHTEZIS

)SDNUOPHCNI(EUQROT FO.ONDETAESSELCYC

EMITNOITARBIV

)F(.PMET.XAM .NIM GNITAES

5-N-NA 5491 82-4/1 03 7.3 enoN enoN .rh1 °052

72052-N-LIM5591

.xorppa82-4/1 03 5.3 enoN enoN

000,03selcyc

°052°054°008

0533SAN 3691 82-4/1 03 5.3 49 51000,03selcyc

°054°008

44658-N-LIMdesoporp

4891 82-4/1 03 5.3 08 05000,03selcyc

°054

maeBtalFtuN-kcoL

5891 82-4/1 03 5.3 521 052000,03selcyc

°054

The design utilizes six flexible flat beams.These beams provide critical prevailing torqueon the bolt without placing abnormal wear onbolt threads. Both the nut and the bolt maintaintangential contact points so that the beamcorners avoid contact with the bolt. This preventsdestructive shaving of the bolt’s thread andadds considerably to the life of each bolt as wellas the lock-nut.

In tests, the 1/4-28 size FlatBeam Lock-Nut wasseated to 125 in. lbs. for each cycle (double theMil-Spec seating torque for this thread size). Itcompleted 250 installation and removal cyclesusing an average of just two bolts.

The Tridair flat beam lock-nut will not shave thethreads of a bolt because of the deflected beamdesign. Further, the loading of the thread by thebolt will be more evenly distributed through thethreads. Thus, it will maintain its self-lockingcapability through a much longer period.

Unique flexible bean design of theTridair FlatBeam Lock-Nut

Tridair Products 1

See pages 2 and 3 for Selector Guide

Selector Guide

Tridair Products 3

Standards or Specials:Our standard line only is shown in this catalog.However, many different modifications, or differentconfigurations can be designed to suit your specificapplication. Call or write for your special problem.See phone numbers and address on the back sideof this catalog.

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9406-S-LIM

B3-FJNU23-0091.B3-FJNU82-0052.B3-FJNU42-5213.

81001LBF 7

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05001LBF 9-8

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repSERC682A7375SMA


11021NBF 01

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43001LBF 01

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0478ro0414repleetAyollAro6265-S-LIM

9406-S-LIM

B3-FJNU82-0052.B3-FJNU42-5213.

03001LBF 11

Floating Nut Plate, 2 Lug

Tridair Products 4

FBL10001 Series

Notes:1. Float of nut portion of assembly is 0.030 minimum

radially from centered position. Nut body is capableof engagement with a bolt in the maximummisalignment position.

2. Nut plates are similar to the dimensional envelopespecified in NAS 686 and MS 21059.

3. Shape within envelope shown optional.

.ONTRAPT

EZISDAERHTA

.XAMB

.XAMC

200.0±

D500.0+000.0-

E.NIM

F.XAM

G.XAM

H.XAM

J.AID.NIM

3-10001LBF B3-FJNU23-0091. 849.0 524.0 886.0 890.0 001.0 095.0 052.0 230.0 491.0

4-10001LBF B3-FJNU82-0052. 292.1 615.0 000.1 890.0 001.0 078.0 182.0 230.0 452.0

5-10001LBF B3-FJNU42-5213. 292.1 906.0 000.1 031.0 521.0 078.0 823.0 540.0 713.0

6-10001LBF B3-FJNU42-0573. 292.1 086.0 000.1 031.0 521.0 078.0 443.0 550.0 973.0

FBL10002 SeriesReduced Rivet Spacing


radially from centered position. Nut body is capableof engagement with a bolt in the maximummisaligned position.

2. Nut plates are similar to the dimensional envelopespecified in NAS 1068 and MS 21075.

3. Shape within envelope shown optional.

.ONTRAPT

EZISDAERHTA

.XAMB

.XAMC

200.0±

D500.0+000.0-

E.NIM

G.XAM

H.XAM

J.AID.NIM

3-20001LBF B3-FJNU23-0091. 937.0 614.0 005.0 890.0 001.0 052.0 230.0 491.0

4-20001LBF B3-FJNU82-0052. 108.0 005.0 265.0 890.0 001.0 182.0 230.0 452.0

5-20001LBF B3-FJNU42-5213. 010.1 185.0 817.0 031.0 711.0 823.0 540.0 713.0

seireS10001LBF seireS20001LBF

.oNhsaDGNITAESEUQROT

)MUMIXAM(

THGIEW001/.SBLMUMIXAM

GNITAESEUQROT

)MUMIXAM(

THGIEW001/.SBLMUMIXAM

3- SBL-NI0.63 14.0 SBL-NI0.63 93.04- SBL-NI0.06 09.0 SBL-NI0.06 96.05- SBL-NI0.021 62.1 SBL-NI0.021 01.16- SBL-NI061 55.1 - -

Tridair Products 5

FBL10021-4Self-Aligning

Material for all versions on page 4 and 5.

Nut: 4140 or 8740 Alloy Steel per MIL-S-5626 or MIL-S-6049; or C1050 per AMS 5085. (Cadmium plated per QQ-P-416, Type I, Class 2, dry flim lube per MIL-L-46010.)Heat Treat: Per MIL-H-6875.Cage: 300 Series CRES per MIL-S-5059. (Passivated per QQ-P-35.)Spherical Washer (for Self-Aligning Version Part No. FBL10021-4 only): 4140 or 8740 Alloy Steel per MIL-S-5626 or MIL-S-6049. (Cadmium plated per QQ-P-416, Type I, Class 2, dry film lube per MIL-L-46010.)

Notes for all versions on page 4 and 5.1. Anti-seize compund per MIL-A-907 is added to internal thread.2. The assembly provides a bearing surface for the nut within the cage.3. Nut pushout and torque-out are as specified in MIL-N-25027.4. Threads per MIL-S-8879 except in locking area and prior to lubrication.5. Minimum assembly height not specified, limited only by strength requirements.6. Locking torque: The nut element of these assemblies shall be capable

of 250 seated, usable cycles when tested per the requirements ofCAL-STD-0232.


radially from centered position. Nut body is capableof engagement with a bolt in the maximummisaligned position.

2. Shape within envelope shown optional.3. Nut plate is similar to the dimensional envelope

specified in NAS 1765.

.ONTRAPT

EZISDAERHT

GNITAESEUQROT

)MUMIXAM(

.XORPPATHGIEW001/.SBL

4-12001LBF B3-FJNU82-0052. SBL-NI0.521 84.1

Floating Nut Plate, 2 Lug

Miniature Floating Nut Plate, 2 Lug

Tridair Products 6

FBL10015 SeriesVariable Counterbored Notes:

Float of nut portion of assembly is 0.020 minimumradially from centered position. Nut body is capableof engagement with a bolt in the maximummisaligned position.

Material for all versions on page 4 and 5.

Nut: 4140 or 8740 Alloy Steel per MIL-S-5626 or MIL-S-6049. (Cadmium plated per QQ-P-416, Type I, Class 2, dry film lube per MIL-L-46010.)Heat Treat: Per MIL-H-6875.Cage: 300 Series CRES per MIL-S-5059. (Passivated per QQ-P-35).

Notes:1. Anti-seize compund per MIL-A-907 applied to internal

threads.2. Mechanical properties of nut plate meets the requirements of

procurement specification MIL-N-25027.3. The assembly provides a bearing surface for the nut within the

cage.4. Shape within envelope shown optional.5. Threads per MIL-S-8879 except in locking area and prior to

lubrication.6. Minimum assembly height (G) not specified, limited only by

strength requirements.7. Lockring torque: The nut element of these assemblies shall be

capable of 250 seated, usable cycles when tested per therequirements of CAL-STD-0232.

.ONTRAPT

EZISDAERHTA

.XAMB

.XAMC

200.0±F

500.0±G

.XAM

J.AID.NIM

K010.0+000.0-


2-3-51001LBF

B3-FJNU23-0091. 927.0 614.0 005.0 052.0

213.0

491.0

521.0 84.03-3-51001LBF 573.0 881.0 35.04-3-51001LBF 834.0 052.0 85.05-3-51001LBF 005.0 213.0 36.06-3-51001LBF 265.0 573.0 86.07-3-51001LBF 526.0 734.0 37.08-3-51001LBF 786.0 005.0 87.02-4-51001LBF

B3-FJNU82-0052. 197.0 005.0 265.0 182.0

943.0

452.0

521.0 46.03-4-51001LBF 114.0 881.0 07.04-4-51001LBF 574.0 052.0 67.05-4-51001LBF 635.0 213.0 28.06-4-51001LBF 995.0 573.0 88.07-4-51001LBF 746.0 734.0 49.08-4-51001LBF 017.0 005.0 00.1

Tridair Products 7

FBL10018 SeriesSide By Side, Reduced Rivet Space

Notes:1. Float of nut portion of assembly is 0.020 minimum radially from

centered position. Nut body is capable of engagement with abolt in the maximum misaligned position.

2. Nut plates are similar to the dimensional envelope specified inNAS 1789.

3. Locking torque: The nut element of these assemblies shall becapable of 250 seated, usable cycles when tested per therequirements of CAL-STD-0232.

Material:Nut: 4140 or 8740 Alloy Steel per MIL-S-5626 or MIL-S-6049. (Cadmium plated per QQ-P-416, Type II, Class 2, dry film lube per MIL-L-46010.)Cage: 17-7 pH CRES per MIL-S-25043 or AMS 5528. (Passivated per QQ-P-35.)

Notes:1. Anti-seize compund per MIL-A-907 applied to internal thread.2. Mechanical properties of nut plate meets the requirements of

procurement specificatiom MIL-N-25027.3. The assembly provides a bearing surface for the nut within the

cage.4. Shape within envelope shown optional.5. Threads per MIL-S-8879 except in locking area and prior to

lubrication.6. Minimum assembly height (E) not specified, limited only by

strength requirements.

.ONTRAPT

EZISDAERHTA

.XAM

B000.0+050.0-

C010.0+

D500.0+000.0-

E.XAM

F.NIM

G.XAM

J200.0+

K.AID.NIM

M.AID.XAM

N.XAM

P.XAM

3-81001LBF B3-FJNU23-0091. 525.0 064.0 052.0 890.0 052.0 001.0 094.0 912.0 491.0 042.0 230.0 904.04-81001LBF B3-FJNU82-0052. 716.0 265.0 182.0 890.0 182.0 001.0 205.0 912.0 452.0 003.0 230.0 625.05-81001LBF B3-FJNU42-5213. 767.0 916.0 953.0 031.0 823.0 521.0 906.0 962.0 713.0 753.0 540.0 885.0

Notes:1. Magnetic permeability shall be leass than 2.0 (air=1.0) for a

field strength of H200 oersteds using a magnetic permeabilityindicator per MIL-I-17214 or equivalent.

2. Locking torque: The nut element of these assemblies iscapable of 250 seated cycles (seated at 100 in. lbs.) when tested perthe requirements of MIL-N-25027.

3. Threads per MIL-S-8879 except in locking area and prior tolubrication.

4. Anti-seize compund per MIL-A-907 is added to internalthread.

Material:Shell: A286 CRES per AMS 5525 (Passivated per QQ-P-35.)Nut: 4130 Alloy Steel per MIL-S-6758 or 8740 Alloy Steel per MIL-S-6049. (Cadmium plated per QQ-P-416, Type II, Class 2.)Washer: C1117 per QQ-S-633, 4130 per AMS 6350 or AMS 6370, or 4340 per AMS 6415. (Cadmium plated per QQ-P-416, Type II, Class 2.)Seal: Fluorosilicone rubber.Lubrication (Nut) : Dry film lube per MIL-L-46010.

Floating Nut Plate, 2 LugFBL10100-4Domed, Self-Sealing

Notes:Float of nut portion of assembly is 0.025 minimum radiallyfrom centered position. Nut body is capable of engagement witha bolt in the maximum misaligned position.

.ONTRAPT

EZISDAERHT

ELISNETHTGNERTS.NIM.SBL

4-00101LBF B3-FJNU82-0052. 0854

Gang Channel

Tridair Products 8

FBL10050 SeriesMaterial:Nut: 4140 or 8740 Alloy Steel per MIL-S-5626 or MIL-S-6049.Channel: 7075 Aluminum Alloy per QQ-A-200/11, QQ-A-250/12 or QQ-A-250/13.Clip: 302 CRES Steel per AMS 5688 or ARMCO 18-2MN* CRES.Heat Treat:Nut: Per MIL-H-6875.Channel: Aged to T6 temp per MIL-H-6088.Finish:Nut: Cadmium plated per QQ-P-416, Type I, Class 2, and dry film lube per MIL-L-46010.Channel: Anodized per MIL-A-8625, Type II, Class 1.Clip: Passivated per QQ-P-35.

*Note: “ARMCO 18-2MN” is a registered trademark ofARMCO Steel Corportaion, Middletown, Ohio.

EZISDAERHTEROBRETNUOC

HTPEDYLBMESSA

REBMUNTRAP

YLBMESSATHGIEH.XAM

B.XAM

C.FER

D.AID.NIM

H.XAM

M500.0±

M1

500.0±N

.FER

B3-FJNU23-0091.

070.0 )()()()(-13-05001LBF 052.0

544.0 484.0 491.0 052.0 422.0 552.0 040.0

521.0 )()()()(-23-05001LBF 213.0

881.0 )()()()(-33-05001LBF 573.0

052.0 )()()()(-43-05001LBF 834.0

313.0 )()()()(-53-05001LBF 005.0

573.0 )()()()(-63-05001LBF 265.0

B3-FJNU82-0052.

070.0 )()()()(-14-05001LBF 892.0

745.0 485.0 452.0 892.0 582.0 523.0 040.0

521.0 )()()()(-24-05001LBF 063.0

881.0 )()()()(-34-05001LBF 224.0

052.0 )()()()(-44-05001LBF 484.0

313.0 )()()()(-54-05001LBF 645.0

573.0 )()()()(-64-05001LBF 806.0

B3-FJNU42-5213.

070.0 )()()()(-15-05001LBF 743.0

346.0 027.0 713.0 443.0 843.0 683.0 050.0

521.0 )()()()(-25-05001LBF 304.0

881.0 )()()()(-35-05001LBF 464.0

052.0 )()()()(-45-05001LBF 725.0

313.0 )()()()(-55-05001LBF 985.0

573.0 )()()()(-65-05001LBF 256.0

Gang Channel

Tridair Products 9

FBL10050 Series

Notes:1. Threads per MIL-S-8879 except in locking area and prior to

lubrication.2. Anti-seize compund per MIL-A-907 applied to internal thread.3. Float, minimum total; “V” = 0.030; “W” = 0.060. Nut shall be capable of

engagement with a bolt in the maximum misaligned position.4. The assembly shall provide a bearing surface for the nut within the

channel.5. Minimum Assembly Height is not specified, limited only by strength

requirements.6. Shape within the envelope shown optional.7. Locking torque: The nut element of these assemblies shall be

capable of 250 seated, usable cycles when tested per therequirements of CAL-STD-0232.

Nut SpacingFor Three Thread Sizes (Use for 2nd dash number inassembly part number)

Part Number Callout Example:

FBL10050 - ( )( ) - ( )( ) ( )( )

Number of Nuts.(To be used only when lessthan the maximum numberof nuts shown in nut spacingtable are required.) Prefix ‘0’if less than ‘10.’ Example:FBL10050-( )( )-( )( )05.

Second Dash No. for nutspacing.

‘Dash’ signifies channelhaving cut-offs perdimension ‘T’ on both ends.

Insert letter ‘L’ in lieu of dashto signify a channel havingcut-offs per dimension ‘U’on both ends.

Insert letter ‘F’ in lieu of dashto signify a channel havingcut-offs per dimension ‘T’ onon one end and cut-off perdimension ‘U’ on theopposite end.

Two digits shown as 1stdash number tabulated; firstdigit refers to thread size;second digit refers tocounterbore depth.

Basic part number

TUNGNICAPS

010.0+

REBMUNFO

STUN

.ONHSADDNOCES:SEZISDAERHTROF

23-0091. 82-0052. 42-5213.

526.0 511OT2 5- - -057.0 69OT2 6- 6- -578.0 28OT2 7- 7- -000.1 27OT2 8- 8- 8-521.1 46OT2 9- 9- 9-052.1 75OT2 01- 01- 01-573.1 25OT2 11- 11- 11-005.1 84OT2 21- 21- 21-057.1 14OT2 41- 41- 41-000.2 63OT2 61- 61- 61-052.2 23OT2 81- 81- 81-005.2 82OT2 02- 02- 02-000.3 42OT2 42- 42- 42-

EZISDAERHTT

030.0+000.0-

U030.0+000.0-

STNENOPMOCTNEMECALPER

TNEMELETUN PILCGNINIATER

B3-FJNU23-0091. 053.0 095.0

1-3-14001LBF

R3-95001LBF

2-3-14001LBF

3-3-14001LBF

4-3-14001LBF

5-3-14001LBF

6-3-14001LBF

B3-FJNU82-0052. 004.0 046.0

1-4-14001LBF

R4-95001-LBF

2-4-14001LBF

3-4-14001LBF

4-4-14001LBF

5-4-14001LBF

6-4-14001LBF

B3-FJNU42-5213. 054.0 027.0

1-5-14001LBF

R5-95001LBF

2-5-14001LBF

3-5-14001LBF

4-5-14001LBF

5-5-14001LBF

6-5-14001LBF

Nuts

Tridair Products 10

FBL10034 SeriesHex Nut,Silver-Plated Thread

Material:A286 CRES, Competition per AMS 5731 or AMS 5737.(Passivated per QQ-P-35 and Silver Plated per AMS2410 on threads only.)Heat Treat:Per MIL-H-6875.


lubrication.2. Reusability to be determined on an individual basis due to

variations in usage.3. Anti-seize compund per MIL-A-907 applied to internal thread.

FBN12011 SeriesDouble Hex NutSilver-Plated Thread

Material:A286 CRES, Competition per AMS 5731 or AMS 5737.(Passivated per QQ-P-35 and Silver Plated per AMS2410 .)Heat Treat:Per MIL-H-6875.Lubrication:Dry film lubricant coated.


lubrication.2. Reusability to be determined on an individual basis due to

variations in usage.3. Anti-seize compund per MIL-A-907 applied to internal thread.

.ONTRAPT

EZISDAERHTA

.XAML

.FERC

.NIMB


3-43001LBF B3-FJNU23-0091. 053.0 521.0 314.0 563.0-773.0 07.0

4-43001LBF B3-FJNU82-0052. 534.0 651.0 884.0 824.0-044.0 09.0

5-43001LBF B3-FJNU42-5213. 735.0 302.0 755.0 094.0-205.0 041.0

.ONTRAPT

EZISDAERHTA

.XAMB

.NIMC

.NIMH

.XAMP

.XAMS

.NIMV

.FERW

4-11021NBF B3-FJNU82-0052. 434.0 493.0 843.0 823.0 082.0 590.0 050.0 503.0-313.0

5-11021NBF B3-FJNU42-5213. 235.0 294.0 024.0 063.0 243.0 011.0 060.0 763.0-673.0

6-11021NBF B3-FJNU42-0573. 136.0 195.0 194.0 854.0 504.0 511.0 070.0 034.0-934.0

Barrel Nuts

Tridair Products 11

FBL10030 Series Material:Nut: 4140 pr 8740 Alloy Steel per MIL-S-5625 or MIL-S-6049. (Cadmium plated per QQ-P-416, Type I, Class 2.)Dry film lube per MIL-L-40610.Anti-seize cmpound per MIL-A-907 applied to internal theads.Barrel: 4140 Allot Steel per MIL-S-5626 (Cadmium plated per QQ-P-416, Type II, Class 2.)Retaining Pin: AISI 420 CRES. (Passivated per QQ-P-35.)

Heat Treat:Nut: Per MIL-H-6875.Barrel : Per MIL-H-6875.

Locking Element:The locking feature is capable of 250 seated usable cycles within the torquelimits of MIL-N-25027 when tested at room temperature with 160 KSIminimum ultimate tensile strength, cadmium plated, alloy steel bolts.This barrel nut is similar to the dimensional envelope specified in NAS 577.

Threads:Per MIL-S-8879, except in locking area and prior to lubrication.

Retainers for Use with FBL10030 Series Barrel Nuts Above

To be used with Barrel Nut above to allow prepositioning of

the assembly within its prepared hole.

Material:Steel, AISI C-1035, AISI C-1050 or AISIC-1060.Heat Treat:Rockwell ‘C’ 40 minimum per MIL-H-6875.Finish:Cadmium plated per QQ-P-416, TypeII, Class 2.

.ONTRAPT

EZISDAERHT

.AIDA000.0+300.0-

B D.XAM

E500.0+

F.FER

G.FER

H500.0±

GNITAESEUQROT

.SBL/HCNI

4-03001NBF B3-FJNU82-0052. 825.0 526.0 604.0 513.0 54.0 44.0 682.0 0.06

5-03001NBF B3-FJNU42-5213. 095.0 886.0 864.0 553.0 94.0 64.0 943.0 0.021

.ONTRAPA

020.0±B

020.0±D

300.0±E

.NIM

TER4-03001NBF 874.0 516.0 010.0 322.0

TER5-03001NBF 435.0 876.0 210.0 852.0

Metric/Decimal Equivalents

Tridair Products 12

Conversion TablesGeneral Data

1 INCH [IN.] = 25.4 MILLIMETERS1 MILLIMETER [mm] = 0.03937 INCHES

1 MEGAPASCAL [MPa] = 145.04 P.S.I.1 P.S.I. = 0.00689 MPa

1 NEWTOM-METER [N.m.] = 8.85 IN. LBS.1 INCH-POUND [IN. LB.] = 0.113 N.m.

Temperatures Stress (Force per Unit Area)

Lockring / BreakawayTorque

LLIRDSEZIS

M/M-ICED

LAMLLIRDSEZIS

M/M-ICED

LAMLLIRDSEZIS

M/M-ICED

LAMLLIRDSEZIS

M/M-ICED

LAM

---0897

1.2.3.--

9300.9700.8110.531.0541.0

5444342423/3

-----

0280.0680.0980.5390.7390.

543

23/72

-----

55502.0902.0312.7812.0122.

61/746/9223/51

-46/13

---

.21-

5734.1354.7864.4274.4484.

46/1-8777-

-4.--5.

6510.7510.0610.0810.7910.

1404938373

-----

0690.0890.5990.5101.0401.

1A

46/51-B

---.6

-

0822.0432.4432.2632.0832.

2/1-

46/3323/7146/53

-.31

---

0005.8115.65152135.9645.

675747-37

---6.-

0020.0120.5220.6320.0420.

6346/7

534333

-----

5601.4901.0011.0111.0311.

CD4/1

EF

-----

0242.0642.0052.0052.0752.

-61/946/73

-23/91

.41--

.51-

2155.5265.1875.6095.7395.

2717-0796

--7.--

0520.0620.6720.0820.2920.

23-138/103

-.3

---

0611.1811.0021.0521.5821.

G46/71

HI-

----7

0162.6562.0662.0272.6572.

46/938/5

-46/1423/12

--

.61--

4906.0526.9926.6046.2656.

8623/1

-7666

--8.--

0130.2130.5130.0230.0330.

928246/9

7262

-----

0631.5041.6041.0441.0741.

JK

23-9LM

-----

0772.0182.2182.0092.6592.

-46/3461/1146/54

-

.71---

.81

3966.9176.5786.1307.7807.

56-463626

-9.---

0530.4530.0630.0730.0830.

52423223/5

22

-----

5941.0251.0451.2651.0751.

46/91N

61/5-O

---.8

-

9692.0203.5213.0513.0613.

23/3246/74

-4/346/94

--

.91--

7817.4437.0847.0057.6567.

16-069585

-.1

---

0930.4930.0040.0140.0240.

-12029181

.4----

5751.0951.0161.0661.5961.

P46/12

QR

23/11

-----

0323.1823.0233.0933.7343.

23/52-

46/1561/31

-

-.02

--

.12

2187.4787.9697.5218.8628.

756546/3

5545

-----

0340.5640.9640.0250.0550.

46/1171615141

-----

9171.0371.0771.0081.0281.

S-T

46/32U

-.9

---

0843.3453.0853.4953.0863.

46/3523/7246/55

-8/7

---

.22-

1828.7348.4958.1668.0578.

3561/1

251505

-----

5950.5260.5360.0760.0070.

3161/3

211101

-----

0581.5781.0981.0191.5391.

8/3VW

46/52-

----

.01

0573.0773.0683.6093.7393.

46/75-

23/9246/9561/51

-.32

---

6098.5509.2609.9129.5739.

948446/5

74-64

----.2

-

0370.0670.1870.5870.7870.0180.

9-87

46/316

-.5

----

0691.8691.0991.0102.1302.0402.

XY

23/31Z

46/72-

-----

.11

0793.0404.2604.0314.9124.1334.

-46/1623/13

-46/36

1

.42--

.52-

4.52

9449.1359.7869.2489.4489.0000.1

siusleC tiehnerhaFC°532 F°554C°062 F°005C°513 F°006C°056 F°0021

lacsapageM hcnI/sdnuoPaPM071 ISP007,42aPM002 ISP000,92aPM022 ISP009,13aPM062 ISP007,73aPM009 ISP005,031aPM0011 ISP005,951

daerhTeziS

.xaMeuqroTgnikcoL

.niMeuqroTyawakaerB

mN .sbL.nI mN .sbL.nI5.2M 54.0 0.4 60.0 5.0

3M 6.0 3.5 90.0 8.05.3M 57.0 6.6 21.0 1.1

4M 9.0 0.8 41.0 2.15M 6.1 0.41 32.0 0.26M 8.2 0.52 63.0 2.37M 3.4 0.83 45.0 8.48M 8.5 0.15 17.0 3.601M 6.9 0.58 61.1 0.0121M 8.41 0.131 77.1 0.6141M 6.22 0.002 17.2 0.4261M 0.53 0.013 27.3 0.3381M 5.34 0.583 02.5 0.6402M 5.84 0.924 00.6 0.3522M 8.46 0.375 04.7 0.5842M 2.78 0.277 05.9 0.48

1.8 x t°C + 32 = t°F

MPa x 145 = PSI

F a i r child Fasteners Dir e c t: GermanyRobert-BoschStraße 4D-86551 Aichach GermanyTel: 49.8251.8757Fax: 49.8251.513.11Part of Fairchild Fasteners

Customer Team Washington D.C.45025 Aviation Drive, Suite 2Dulles, VA 20166 USATel: 703.742.4450Fax: 703.742.4451

Customer Team Dallas701 Highlander Boulevard, Suite 450Arlington, TX 76015 USATel: 817.417.0677Fax: 817.417.0678

Customer Team Los Angeles3016 West Lomita BoulevardTorrance, CA 90505 USATel: 310.784.0700Fax: 310.784.6665

Customer Team SeattleFisher Business Center, Suite 6053400 188th Street S.W.Lynnwood, WA 98037 USATel: 425.712.1599Fax: 425.744.1283

United States Customer Teams• RE G I O N AL OF F I C E S •

Customer Team-Distribution Dallas701 Highlander Boulevard, Suite 360Arlington, TX 76015 USATel: 817.417.4128Fax: 817.417.4129

Customer Team-WorldwideDistribution Los Angeles3016 West Lomita BoulevardTorrance, CA 90505 USATel: 310.784.6400Fax: 310.784.6608

• D I S T R I B UT I O N O F F I CE S •

Customer Team HildesheimP.F. 10 13 20, Steven 3D-31113 Hildesheim-Bavenstedt GermanyTel: 49.5121.762.40Fax: 49.5121.762.496

Customer Team U.K.15 New Star RoadLeicester LE4 9JD EnglandTel: 44.0116.274.3660Fax: 44.0116.274.3666

Customer Team NaplesVia San Nullo 17180014 Giugliano (Na) ItalyTel: 39.81.804.8852Fax: 39.81.804.8854

Customer Team ParisP.A. de la Danne - EragnyB.P. 14-95611Cergy-Pontoise Cedex - FranceTel: 33(0)1.34.32.30.30Fax: 33(0)1.30.37.12.69

Customer Team ToulouseVictoria Center20 Chemim de Laporte31300 Toulouse - FranceTel: 33(0)5.34.50.57.60Fax: 33(0)5.61.49.04.19

European Customer Teams

• A E R O S PA C E O F F I CE S •Customer Team Saint Cosme9 Rue des Cressonnieres, BP 572110 Saint Cosme en Vairais FranceTel: 33(0)2.43.31.41.00Fax: 33(0)2.43.31.41.41

Customer Team KelkheimIndustriestraße 6D-65779 Kelkheim GermanyTel: 49.6195.8050Fax: 49.6195.5647

Customer Team U.K.15 New Star RoadLeicester LE4 9JD EnglandTel: 44.0116.274.3660Fax: 44.0116.274.3666

• I ND U S T R I AL OF F I C E S •

Industry: UnruhScrewcorp / Voi-Shan135 North Unruh AvenueCity of Industry, CA 91744 USATel: 626.937.5400Fax: 626.937.5454

Santa AnaDelron / Rosán3130 West Harvard StreetSanta Ana, CA 92704 USATel: 714.641.8800Fax: 714.641.8801

South BayCamloc / RAM / Tridair / Voi-Shan3000 West Lomita BoulevardTorrance, CA 90505 USATel: 310.784.2600Fax: 310.784.6606

KelkheimCamloc / TridairIndustriestraße 6D-65779 Kelkheim GermanyTel: 49.6195.8050Fax: 49.6195.5647

GuardaEurosim / SimmondsParque Industrial da GuardaLotes 53/54 6300 Guarda PortugalTel: 35.10.712.22007

FullertonKaynar / Eagle800 S. State College Blvd.Fullerton, CA 92831 USATel: 714.871.1550Fax: 714.680.0175

Fullerton: Plant 2K-Fast / APS801 S. Placentia Ave.Fullerton, CA 92831 USATel: 714.738.3600Fax: 714.278.9900

PlacentiaMicrodot190 West Cowther AvenuePlacentia, CA 92670 USATel: 714.870.6650Fax: 714.524.5346

StoughtonMarson44 Campanelli Parkway Stoughton, MA 02072 USATel: 800.343.3633Fax: 800.644.2177

OntarioMairoll747 E. Francis StreetOntario, CA 91761 USATel: 909.947.3366Fax: 909.947.4866

Manufacturing FacilitiesSaint CosmeSimmonds9 Rue des Cressonnieres, BP 572110 Saint Cosme en VairaisFranceTel: 33(0)2.43.31.41.00Fax: 33(0)2.43.31.41.41

HildesheimMecaero / Rosán / Screwcorp / Voi-ShanP.F. 10 13 20, Steven 3D-31113 Hildesheim-Bavenstedt GermanyTel: 49.5121.762.40Fax: 49.5121.511.500

RoquesMecaeroBoulevard du Grand-CastaingRoques-eur Garonne31128 Portet - Sur - Garonne Cedex FranceTel: 33(0)5.61.51.82.30Fax: 33(0)5.61.51.60.78

MontbrisonSNEPBP 84 - 42602Montbrison Cedex FranceTel: (33) 77.58.17.18Fax: (33) 77.58.57.72

Oakleigh Recoil20 StamfordRoad, Oakleigh Vic. 3166Australia Tel: 61.3.9563.1500 Fax: 61.3.9563.1980

Fémipari KFT .8248 Nemesvámos, HungaryDózsa Gyorgy u. 2/aTel: 36.06.88.265.801Fax: 36.06.88.265.802

Industry: TempleScrewcorp / Voi-Shan13001 Temple AvenueCity of Industry, CA 91746 USATel: 626.369.3333Fax: 626.369.3416

ConchesMecaeroZone Induatrielle - BP 927910 Conches, FranceTel: 33.32.30.11.45Fax: 33.32.30.98.06

F a i r child Fasteners Dir e c t20660 Nordhoff StreetChatsworth, CA 91311 USATel: 818.998.1412Fax: 818.407.5945Part of Fairchild Fasteners

Integrated Product Service Solutions

All Trademarks are the property of their respective owners

Fairchild Fasteners Direct : FranceP.A de la Danne - EragnyB.P.14 - 95611 Cergy-Pontoise Cedex FranceTel: 33.1.34.32.55.33Fax: 33.1.34.32.55.30Part of Fairchild Fasteners

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