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B1821BH038C225N — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

B1821BH038C225N: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5305-00-638-8920, 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
B1821BH038C225N
NSN: 5305-00-638-8920
FSC: 5305 — Screws
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
Part NumberB1821BH038C225N
NSN5305-00-638-8920
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: B1821BH038C225N · 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 9
018-1622-12-0Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
545-0370-01-0 FIND 9Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
454907Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
306-40021Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
300836Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
413-636Reference 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 B1821BH038C225N?
B1821BH038C225N is a SCREW,CAP,HEXAGON HEAD.
What parts can replace B1821BH038C225N?
There are 9 known substitutes for B1821BH038C225N: 018-1622-12-0, 545-0370-01-0 FIND 9, 454907 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B1821BH038C225N?
B1821BH038C225N is cataloged in the U.S. Government catalog under NSN 5305-00-638-8920. 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.