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Technical Data Sheet
PartsTable / COMPONENT / 0.750-10UNC-3A2.250 LG
0.750-10UNC-3A2.250 LG ✓ 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 0.750-10UNC-3A2.250 LG 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 5305-01-324-8860, 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
0.750-10UNC-3A2.250 LG
NSN: 5305-01-324-8860
FSC: 5305
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)
SPECIFICATIONS
Part Number0.750-10UNC-3A2.250 LG
NSN5305-01-324-8860
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 0.750-10UNC-3A2.250 LG · 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 LENGTH: 2.050 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 10
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
THREAD CLASS: 3A A
•
HEAD STYLE: FLAT COUNTERSUNK
•
INTERNAL DRIVE STYLE: HEXAGON
•
WIDTH ACROSS FLATS: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH2.050 INCHES NOMINAL IN
THREAD QUANTITY PER INCH10
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
THREAD CLASS3A A
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.625 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH2.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
NASM24671-78Interchangeable
interchangeable cross-reference
interchangeable
MS24671-78Interchangeable
interchangeable cross-reference
interchangeable
FF-S-86 TYPE IVInterchangeable
interchangeable cross-reference
interchangeable
51480Interchangeable
interchangeable cross-reference
interchangeable
100A905078Interchangeable
interchangeable cross-reference
interchangeable
92197A244Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0.750-10UNC-3A2.250 LG?
0.750-10UNC-3A2.250 LG is a 0.750-10UNC-3A2.250 LG.
What parts can replace 0.750-10UNC-3A2.250 LG?
There are 13 known substitutes for 0.750-10UNC-3A2.250 LG: NASM24671-78, MS24671-78, FF-S-86 TYPE IV and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 0.750-10UNC-3A2.250 LG?
0.750-10UNC-3A2.250 LG is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-324-8860. 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