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6643057-019 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6643057-019: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-01-164-7477, 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
6643057-019
NSN: 5310-01-164-7477
FSC: 5310 — Nuts and Washers
CAGE: 9A859 — GENERAL ELECTRIC CO DISTRIBUTION SUPPORT OPN CUSTOMER SERVICE AND DISTRIBUTION (USA)
SPECIFICATIONS
Part Number6643057-019
NSN5310-01-164-7477
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6643057-019 · 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
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 4
785E109-015Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MIL-S-1222Reference document
Same NSN cross-reference
Reference document — Secondary reference
785E109 PIECE 15Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-DTL-1222Reference document
Same NSN cross-reference
Reference document — Identification reference
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 6643057-019?
6643057-019 is a NUT,PLAIN,HEXAGON.
What parts can replace 6643057-019?
There are 4 known substitutes for 6643057-019: 785E109-015, MIL-S-1222, 785E109 PIECE 15 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6643057-019?
6643057-019 is cataloged in the U.S. Government catalog under NSN 5310-01-164-7477. This indicates validated use in U.S. government and defense supply chains.
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