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Technical Data Sheet
PartsTable / COMPONENT / 1/2-13UNC-3A X 2 1/2 INCHESL1
1/2-13UNC-3A X 2 1/2 INCHESL1 ✓ 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-3A X 2 1/2 INCHESL1 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 5305-01-302-5219, 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-3A X 2 1/2 INCHESL1
NSN: 5305-01-302-5219
FSC: 5305
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
Part Number1/2-13UNC-3A X 2 1/2 INCHESL1
NSN5305-01-302-5219
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1/2-13UNC-3A X 2 1/2 INCHESL1 · 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
•
INTERNAL DRIVE STYLE: HEXAGON
•
THREAD QUANTITY PER INCH: 13
•
MATERIAL: NICKEL ALLOY OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
DEPARTURE FROM CITED DOCUMENT: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
•
HEAD STYLE: HEXAGON
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
DEPARTURE FROM CITED DESIGNATOR: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL DRIVE STYLEHEXAGON
THREAD QUANTITY PER INCH13
MATERIALNICKEL ALLOY OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
DEPARTURE FROM CITED DOCUMENTMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
DEPARTURE FROM CITED DESIGNATORQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
WIDTH BETWEEN FLATS2.500 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATAVI TYPE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
FFS86TYPE6Interchangeable
interchangeable cross-reference
interchangeable
FF-S-86 TYPE VIInterchangeable
interchangeable cross-reference
interchangeable
60-16-1672Interchangeable
interchangeable cross-reference
interchangeable
AES14F500875BB3A11Interchangeable
interchangeable cross-reference
interchangeable
106C7150P49Interchangeable
interchangeable cross-reference
interchangeable
5/8-11UNC-2A X 4 1/2 INCHESL1Interchangeable
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-3A X 2 1/2 INCHESL1?
1/2-13UNC-3A X 2 1/2 INCHESL1 is a 1/2-13UNC-3A X 2 1/2 INCHESL1.
What parts can replace 1/2-13UNC-3A X 2 1/2 INCHESL1?
There are 24 known substitutes for 1/2-13UNC-3A X 2 1/2 INCHESL1: FFS86TYPE6, FF-S-86 TYPE VI, 60-16-1672 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1/2-13UNC-3A X 2 1/2 INCHESL1?
1/2-13UNC-3A X 2 1/2 INCHESL1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-302-5219. 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