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491B0700045-001 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

491B0700045-001: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 OVERALL, special_features: PLATING/SURFACE TREATMENT: SOLID FILM LUBRICANT PER MIL-L-81329, end_item_identification: C-5M AIRCRAFT. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-618-8654, 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
491B0700045-001
NSN: 5306-01-618-8654
FSC: 5306 — Bolts
CAGE: 1B6R3 — MRA SYSTEMS, LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 OVERALL
special_featuresPLATING/SURFACE TREATMENT: SOLID FILM LUBRICANT PER MIL-L-81329
end_item_identificationC-5M AIRCRAFT
NSN5306-01-618-8654
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 491B0700045-001 · 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
KEY FEATURES
•
MATERIAL: STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 OVERALL
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESPLATING/SURFACE TREATMENT: SOLID FILM LUBRICANT PER MIL-L-81329
END ITEM IDENTIFICATIONC-5M AIRCRAFT
MATERIALSTEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 OVERALL
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 491B0700045-001?
491B0700045-001 is a BOLT,SHOULDER.
What is the NSN for 491B0700045-001?
491B0700045-001 is cataloged in the U.S. Government catalog under NSN 5306-01-618-8654. 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.