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Technical Data Sheet
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90181A581 — 90181A581

✓ Government record, cited
MCMASTER-CARR SUPPLY CO · BOLT SCREW
PRODUCT OVERVIEW

90181A581: 90181A581.

The 90181A581 is a MCMASTER-CARR SUPPLY CO industrial component. This part is cataloged in the U.S. Government catalog under NSN 5305-01-455-6476, 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
90181A581
NSN: 5305-01-455-6476
FSC: 5305 — Screws
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
Part Number90181A581
ManufacturerMCMASTER-CARR SUPPLY CO
NSN5305-01-455-6476
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 90181A581 · MCMASTER-CARR SUPPLY CO ⚠ 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90181A581?
90181A581 is a 90181A581 manufactured by MCMASTER-CARR SUPPLY CO.
What is the NSN for 90181A581?
90181A581 is cataloged in the U.S. Government catalog under NSN 5305-01-455-6476. This indicates validated use in U.S. government and defense supply chains.
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