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157131 — LINE SECTION,RADIO FREQUENCY TRA

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

157131: LINE SECTION,RADIO FREQUENCY TRA.

LINE SECTION,RADIO FREQUENCY TRA. Key specifications include diameter: 0.125 INCHES NOMINAL IN, material: COPPER ALLOY, point_type: EXTENDED PRONG SQUARE CUT, overall_length: 3.465 INCHES NOMINAL IN, hardness_rating: 55.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 67.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL, frequency_rating: 1.0 GIGAHERTZ MINIMUM AND 1.5 GIGAHERTZ MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-241-7332, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
157131
NSN: 5315-00-241-7332
NIINs: 002417332, 012352575
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 17576 — GOODRICH CORP DBA GOODRICH CORP (USA)
SPECIFICATIONS
diameter0.125 INCHES NOMINAL IN
materialCOPPER ALLOY
point_typeEXTENDED PRONG SQUARE CUT
overall_length3.465 INCHES NOMINAL IN
hardness_rating55.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 67.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
frequency_rating1.0 GIGAHERTZ MINIMUM AND 1.5 GIGAHERTZ MAXIMUM
overall_diameter3.500 INCHES NOMINAL IN
style_designatorSTANDARD
underloop_length1.375 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
precious_materialSILVER
surface_treatmentPASSIVATE OVERALL
fsc_application_dataANTENNAS,WAVEGUIDES AND RELATED EQUIP.
NSN5315-00-241-7332
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 157131 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
HARDNESS RATING: 55.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 67.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
•
STYLE DESIGNATOR: STANDARD
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTN A493 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
DIAMETER: 0.125 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
UNDERLOOP LENGTH: 1.375 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING55.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 67.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
STYLE DESIGNATORSTANDARD
MATERIAL DOCUMENT AND CLASSIFICATIONASTN A493 ASSN STD ALL MATERIAL RESPONSES OVERALL
DIAMETER0.125 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
END ITEM IDENTIFICATIONARMORED MULTI-PURPOSE VEHICLE (AMPV)
UNDERLOOP LENGTH1.375 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
MATERIALSTEEL COMP 302 OR STEEL COMP 304 OVERALL
POINT TYPEEXTENDED PRONG SQUARE CUT
SUBSTITUTES & CROSS-REFERENCES 7
122-2422391 PIECE 219Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
122-2422417 PIECE 219Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
122-2422395 PIECE 219Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
167-8341824 ITEM 8Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS24665-374Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
124-7386936 PC 52Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 157131?
157131 is a LINE SECTION,RADIO FREQUENCY TRA.
What parts can replace 157131?
There are 7 known substitutes for 157131: 122-2422391 PIECE 219, 122-2422417 PIECE 219, 122-2422395 PIECE 219 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 157131?
157131 is cataloged in the U.S. Government catalog under NSN 5315-00-241-7332. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.