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Technical Data Sheet
PartsTable / COMPONENT / B18.2.3.8M
B18.2.3.8M ✓ 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 B18.2.3.8M 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 5305-01-497-8015, 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
B18.2.3.8M
NSN: 5305-01-497-8015
FSC: 5305
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)
SPECIFICATIONS
Part NumberB18.2.3.8M
NSN5305-01-497-8015
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: B18.2.3.8M · 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
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION2320-01-123-1602
PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW, HEX FLANGE
SPECIAL FEATURESMATERIAL: ZINC PLATED STEEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
PA3323Interchangeable
interchangeable cross-reference
interchangeable
K10-199Interchangeable
interchangeable cross-reference
interchangeable
60-3292Interchangeable
interchangeable cross-reference
interchangeable
1310879Interchangeable
interchangeable cross-reference
interchangeable
3453HS1Interchangeable
interchangeable cross-reference
interchangeable
345602Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B18.2.3.8M?
B18.2.3.8M is a B18.2.3.8M.
What parts can replace B18.2.3.8M?
There are 9 known substitutes for B18.2.3.8M: PA3323, K10-199, 60-3292 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B18.2.3.8M?
B18.2.3.8M is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-497-8015. 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