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645A56-0H26 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

645A56-0H26: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5306-00-021-3623, 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
645A56-0H26
NSN: 5306-00-021-3623
FSC: 5306 — Bolts
CAGE: 97942 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
Part Number645A56-0H26
NSN5306-00-021-3623
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 645A56-0H26 · 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 7
28335Reference document
Same NSN cross-reference
Reference document — Secondary reference
330437Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
330C889A5018D10Reference document
Same NSN cross-reference
Reference document — Secondary reference
5306000213623Reference document
Same NSN cross-reference
Reference document — Informative reference only
MS35307-331Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
N0N MAGReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 645A56-0H26?
645A56-0H26 is a BOLT,MACHINE.
What parts can replace 645A56-0H26?
There are 7 known substitutes for 645A56-0H26: 28335, 330437, 330C889A5018D10 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 645A56-0H26?
645A56-0H26 is cataloged in the U.S. Government catalog under NSN 5306-00-021-3623. 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.