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Technical Data Sheet
PartsTable / COMPONENT / 0.250-20UNC-2AX1.500LG STL
0.250-20UNC-2AX1.500LG STL ✓ 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 0.250-20UNC-2AX1.500LG STL 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 5305-01-534-3942, 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
0.250-20UNC-2AX1.500LG STL
NSN: 5305-01-534-3942
FSC: 5305
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part Number0.250-20UNC-2AX1.500LG STL
NSN5305-01-534-3942
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 0.250-20UNC-2AX1.500LG STL · 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
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
THREAD CLASS: 2A A
•
THREAD LENGTH: 1.500 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
THREAD QUANTITY PER INCH: 20
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD CLASS2A A
THREAD LENGTH1.500 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD DIAMETER0.250 INCHES IN
THREAD QUANTITY PER INCH20
END ITEM IDENTIFICATIONSSGN TRIDENT CLASS FOUNDATIONS PIPING 1ST PLATFORM
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
AMS-QQ-P-416Interchangeable
interchangeable cross-reference
interchangeable
3468AS1019-1Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-18240Interchangeable
Same NIIN cross-reference
interchangeable
7384562-149Interchangeable
Same NIIN cross-reference
interchangeable
G4132102-149Interchangeable
Same NIIN cross-reference
interchangeable
67-02-1150Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0.250-20UNC-2AX1.500LG STL?
0.250-20UNC-2AX1.500LG STL is a 0.250-20UNC-2AX1.500LG STL.
What parts can replace 0.250-20UNC-2AX1.500LG STL?
There are 8 known substitutes for 0.250-20UNC-2AX1.500LG STL: AMS-QQ-P-416, 3468AS1019-1, MIL-F-18240 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 0.250-20UNC-2AX1.500LG STL?
0.250-20UNC-2AX1.500LG STL is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-534-3942. 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