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Technical Data Sheet
PartsTable / COMPONENT / 1/2-13UNC-2A X 3
1/2-13UNC-2A X 3 ✓ 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 3 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 5305-01-270-6169, 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 3
NSN: 5305-01-270-6169
FSC: 5305
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part Number1/2-13UNC-2A X 3
NSN5305-01-270-6169
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1/2-13UNC-2A X 3 · 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
•
CRITICALITY CODE JUSTIFICATION: ZZZW
•
THREAD QUANTITY PER INCH: 13
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
THREAD LENGTH: 3.000 INCHES NOMINAL IN
•
DEPARTURE FROM CITED DOCUMENT: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMSOL INSTRUCTION FOR LEVEL 1 ITEMS
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE
•
MATERIAL: NICKEL ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CRITICALITY CODE JUSTIFICATIONZZZW
THREAD QUANTITY PER INCH13
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD DIAMETER0.500 INCHES IN
THREAD LENGTH3.000 INCHES NOMINAL IN
DEPARTURE FROM CITED DOCUMENTMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMSOL INSTRUCTION FOR LEVEL 1 ITEMS
NONDEFINITIVE SPEC/STD DATA1 TYPE
MATERIALNICKEL ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
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
MIL-DTL-1222 TYI GR400L1Interchangeable
interchangeable cross-reference
interchangeable
845-4788655 ITEM 16L1Interchangeable
interchangeable cross-reference
interchangeable
845-4788655 ITEM 16Interchangeable
interchangeable 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 3?
1/2-13UNC-2A X 3 is a 1/2-13UNC-2A X 3.
What parts can replace 1/2-13UNC-2A X 3?
There are 18 known substitutes for 1/2-13UNC-2A X 3: MIL-DTL-1222,TYI,GR400L1, 1/2-13UNC-2A X 1 3/4INL1, MIL-DTL-1222,TYI,GR400 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1/2-13UNC-2A X 3?
1/2-13UNC-2A X 3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-270-6169. 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