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SC5131 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_item_identification: 1005015111250, M2 W/QUICK CHANGE BARREL, second_end_relationship_with_first_end: NOT IDENTICAL, part_name_assigned_by_controlling_agency: LOCK, TRUNNION BLOCK. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-530-8728, 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
SC5131
NSN: 5315-01-530-8728
FSC: 5315
CAGE: 26978 — GENERAL DYNAMICS - OTS, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_item_identification1005015111250, M2 W/QUICK CHANGE BARREL
second_end_relationship_with_first_endNOT IDENTICAL
part_name_assigned_by_controlling_agencyLOCK, TRUNNION BLOCK
NSN5315-01-530-8728
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SC5131 · 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
•
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
MATERIALSTEEL OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYLOCK, TRUNNION BLOCK
END ITEM IDENTIFICATION1005015111250, M2 W/QUICK CHANGE BARREL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
DM9718-12P1AInterchangeable
interchangeable cross-reference
interchangeable
3366Interchangeable
interchangeable cross-reference
interchangeable
07-203366Interchangeable
interchangeable cross-reference
interchangeable
203366Interchangeable
interchangeable cross-reference
interchangeable
AM1-B3-A-50-2Interchangeable
interchangeable cross-reference
interchangeable
UPL-1-1-52-503Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SC5131?
SC5131 is a PIN,SHOULDER,HEADLESS.
What parts can replace SC5131?
There are 9 known substitutes for SC5131: DM9718-12P1A, 3366, 07-203366 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SC5131?
SC5131 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-530-8728. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026