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03A257C3 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

03A257C3: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-01-430-7426, 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
03A257C3
NSN: 5310-01-430-7426
FSC: 5310 — Nuts and Washers
CAGE: 76823 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN IS DIV NORTHROP GRUMMAN AERONAUTICS SYSTEMS (USA)
SPECIFICATIONS
Part Number03A257C3
NSN5310-01-430-7426
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 03A257C3 · 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
SUBSTITUTES & CROSS-REFERENCES 3
MM118C3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
AMM118C3Reference document
Same NSN cross-reference
Reference document — Secondary reference
NS202860C-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 03A257C3?
03A257C3 is a WASHER,RECESSED.
What parts can replace 03A257C3?
There are 3 known substitutes for 03A257C3: MM118C3, AMM118C3, NS202860C-3. Substitute compatibility should be verified for your specific system.
What is the NSN for 03A257C3?
03A257C3 is cataloged in the U.S. Government catalog under NSN 5310-01-430-7426. This indicates validated use in U.S. government and defense supply chains.
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