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Technical Data Sheet
PartsTable / COMPONENT / 1/2-13UNC-2A X 1 3/4 IN.
1/2-13UNC-2A X 1 3/4 IN. ✓ 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 1/2-13UNC-2A X 1 3/4 IN. 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 5305-01-314-6750, 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
1/2-13UNC-2A X 1 3/4 IN.
NSN: 5305-01-314-6750
FSC: 5305
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
Part Number1/2-13UNC-2A X 1 3/4 IN.
NSN5305-01-314-6750
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1/2-13UNC-2A X 1 3/4 IN. · 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 CLASS: 2A A
•
MATERIAL: STEEL OVERALL
•
MINIMUM YIELD STRENGTH: 130000 POUNDS PER SQUARE INCH LBS
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE J429 GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
HEAD STYLE: HEXAGON
•
MINIMUM TENSILE STRENGTH: 150000 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A A
MATERIALSTEEL OVERALL
MINIMUM YIELD STRENGTH130000 POUNDS PER SQUARE INCH LBS
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J429 GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HEAD STYLEHEXAGON
SPECIAL FEATURESMIL-DTL-1222 SPECIFICALLY STATED GRADES 8, 4340 AND A574 FASTENERS SHALL NOT BE COATED WITH ANODIC ZINC, METALLIC ALUMIMUM, ZINC CONTAINING PRIMER.
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH LBS
THREAD LENGTH1.250 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
MIL-DTL-1222,TYI,GR400L1Interchangeable
interchangeable cross-reference
interchangeable
1/2-13UNC-2A X 1 3/4INL1Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1222,TYI,GR400Interchangeable
interchangeable cross-reference
interchangeable
M1222RN8C228GHNNInterchangeable
Same NIIN cross-reference
interchangeable
MIL-DTL-1222Interchangeable
Same NIIN cross-reference
interchangeable
MIL-S-1222Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1/2-13UNC-2A X 1 3/4 IN.?
1/2-13UNC-2A X 1 3/4 IN. is a 1/2-13UNC-2A X 1 3/4 IN..
What parts can replace 1/2-13UNC-2A X 1 3/4 IN.?
There are 6 known substitutes for 1/2-13UNC-2A X 1 3/4 IN.: MIL-DTL-1222,TYI,GR400L1, 1/2-13UNC-2A X 1 3/4INL1, MIL-DTL-1222,TYI,GR400 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1/2-13UNC-2A X 1 3/4 IN.?
1/2-13UNC-2A X 1 3/4 IN. is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-314-6750. 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