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2640-328 PIECE — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2640-328 PIECE: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, end_item_identification: SUBMARINE MISCELLANEOUS SONAR AND ADP SYSTEMS. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-482-3133, 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
2640-328 PIECE
NSN: 5310-01-482-3133
FSC: 5310 — Nuts and Washers
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
end_item_identificationSUBMARINE MISCELLANEOUS SONAR AND ADP SYSTEMS
NSN5310-01-482-3133
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2640-328 PIECE · 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: NICKEL ALLOY OVERALL
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONSUBMARINE MISCELLANEOUS SONAR AND ADP SYSTEMS
MATERIALNICKEL ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
H462-0492Reference document
Same NSN cross-reference
Reference document — Drawing number 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 2640-328 PIECE?
2640-328 PIECE is a WASHER,KEY.
What parts can replace 2640-328 PIECE?
There is 1 known substitute for 2640-328 PIECE: H462-0492. Substitute compatibility should be verified for your specific system.
What is the NSN for 2640-328 PIECE?
2640-328 PIECE is cataloged in the U.S. Government catalog under NSN 5310-01-482-3133. 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.