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7001621-1 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

7001621-1: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include end_item_identification: USED ON ADV MEDIUM AIR TO AIR MISSILE. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-418-4945, 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
7001621-1
NSN: 5310-01-418-4945
FSC: 5310 — Nuts and Washers
CAGE: 32067 — MARVIN ENGINEERING CO, INC (USA)
SPECIFICATIONS
end_item_identificationUSED ON ADV MEDIUM AIR TO AIR MISSILE
NSN5310-01-418-4945
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7001621-1 · 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONUSED ON ADV MEDIUM AIR TO AIR MISSILE
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 1
5310PL0787242Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 7001621-1?
7001621-1 is a WASHER,FLAT.
What parts can replace 7001621-1?
There is 1 known substitute for 7001621-1: 5310PL0787242. Substitute compatibility should be verified for your specific system.
What is the NSN for 7001621-1?
7001621-1 is cataloged in the U.S. Government catalog under NSN 5310-01-418-4945. 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.