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PartsTable / COMPONENT / ANSI B46.1
ANSI B46.1 ✓ 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 ANSI B46.1 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 5307-00-105-5975, 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
ANSI B46.1
NSN: 5307-00-105-5975
FSC: 5307
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
Part NumberANSI B46.1
NSN5307-00-105-5975
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ANSI B46.1 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL SAE J403 NO. 1018-1026 NO. 1112-1113,2.000 IN. LG,BOTH ENDS THD 0.250-20 UNC-2A,INTERMEDIATE PORTION HEXAGON SHAPED,0.500 IN. W,0.795 IN. MIN,0.805 IN. MAX LG A
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION28059523927
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL SAE J403 NO. 1018-1026 NO. 1112-1113,2.000 IN. LG,BOTH ENDS THD 0.250-20 UNC-2A,INTERMEDIATE PORTION HEXAGON SHAPED,0.500 IN. W,0.795 IN. MIN,0.805 IN. MAX LG A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
78-403Interchangeable
interchangeable cross-reference
interchangeable
GGG-C-406 TY1CLAInterchangeable
interchangeable cross-reference
interchangeable
J403Interchangeable
interchangeable cross-reference
interchangeable
AMS2400SInterchangeable
Same NIIN cross-reference
interchangeable
377049BInterchangeable
Same NIIN cross-reference
interchangeable
13206E0725Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ANSI B46.1?
ANSI B46.1 is a ANSI B46.1.
What parts can replace ANSI B46.1?
There are 7 known substitutes for ANSI B46.1: 78-403, GGG-C-406 TY1CLA, J403 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ANSI B46.1?
ANSI B46.1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-105-5975. 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