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Technical Data Sheet
PartsTable / COMPONENT / SM-B-71598
SM-B-71598 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The STUD,SHOULDERED AND STEPPED is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-594-3889, 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
SM-B-71598
NSN: 5307-00-594-3889
FSC: 5307
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
Part NumberSM-B-71598
NSN5307-00-594-3889
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SM-B-71598 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
07-862593Interchangeable
interchangeable cross-reference
interchangeable
862593Interchangeable
interchangeable cross-reference
interchangeable
58775Interchangeable
interchangeable cross-reference
interchangeable
AC8775Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/13Interchangeable
interchangeable cross-reference
interchangeable
LOCTITE 587Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SM-B-71598?
SM-B-71598 is a STUD,SHOULDERED AND STEPPED.
What parts can replace SM-B-71598?
There are 8 known substitutes for SM-B-71598: 07-862593, 862593, 58775 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SM-B-71598?
SM-B-71598 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-594-3889. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026