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644928 — SCREW,CARBURETOR AD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

644928: SCREW,CARBURETOR AD.

The SCREW,CARBURETOR AD is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5305-00-366-6546, 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
644928
NSN: 5305-00-366-6546
FSC: 5305 — Screws
CAGE: 58275 — SASCO INC CANADIAN DIV
SPECIFICATIONS
Part Number644928
NSN5305-00-366-6546
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 644928 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 6
68469R1Reference document
Same NSN cross-reference
Reference document — Secondary reference
645639Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
30A37Reference document
Same NSN cross-reference
Reference document — Secondary reference
852705Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
56297Reference document
Same NSN cross-reference
Reference document — Secondary reference
16-5Reference document
Same NSN cross-reference
Reference document — Secondary 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 644928?
644928 is a SCREW,CARBURETOR AD.
What parts can replace 644928?
There are 6 known substitutes for 644928: 68469R1, 645639, 30A37 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 644928?
644928 is cataloged in the U.S. Government catalog under NSN 5305-00-366-6546. 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.