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302703-130481 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

302703-130481: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, special_features: 5/16" C1010 MATERIAL HARDENED FLAT WASHER, end_item_identification: MRAP - UNIQUE NSN - USED ON 3 MRAP VARIANTS; MRAP - COUGAR. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-557-0877, 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
302703-130481
NSN: 5310-01-557-0877
FSC: 5310 — Nuts and Washers
CAGE: 0Y3H3 — FASTENAL COMPANY DBA FASTENAL CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
special_features5/16" C1010 MATERIAL HARDENED FLAT WASHER
end_item_identificationMRAP - UNIQUE NSN - USED ON 3 MRAP VARIANTS; MRAP - COUGAR
NSN5310-01-557-0877
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 302703-130481 · 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
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
SPECIAL FEATURES5/16" C1010 MATERIAL HARDENED FLAT WASHER
END ITEM IDENTIFICATIONMRAP - UNIQUE NSN - USED ON 3 MRAP VARIANTS; MRAP - COUGAR
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 2
3007693Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5310PL2128358Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 302703-130481?
302703-130481 is a WASHER,FLAT.
What parts can replace 302703-130481?
There are 2 known substitutes for 302703-130481: 3007693, 5310PL2128358. Substitute compatibility should be verified for your specific system.
What is the NSN for 302703-130481?
302703-130481 is cataloged in the U.S. Government catalog under NSN 5310-01-557-0877. 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.