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Technical Data Sheet
PartsTable / COMPONENT / SIZE 0.625-11UNRC-3A X 2.250
SIZE 0.625-11UNRC-3A X 2.250 ✓ 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 SIZE 0.625-11UNRC-3A X 2.250 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 5305-01-460-2992, 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
SIZE 0.625-11UNRC-3A X 2.250
NSN: 5305-01-460-2992
FSC: 5305
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberSIZE 0.625-11UNRC-3A X 2.250
NSN5305-01-460-2992
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SIZE 0.625-11UNRC-3A X 2.250 · 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 QUANTITY PER INCH: 11
•
THREAD SERIES DESIGNATOR: UNRC
•
MATERIAL: NICKEL ALLOY OVERALL
•
THREAD CLASS: 3A A
•
FASTENER LENGTH: 2.125 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
CRITICALITY CODE JUSTIFICATION: ZZZX
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH11
THREAD SERIES DESIGNATORUNRC
MATERIALNICKEL ALLOY OVERALL
SPECIAL FEATURESSCREW, CAP, SOCKET HEAD, SELF LOCKING (REQUESTED NAME)
THREAD CLASS3A A
FASTENER LENGTH2.125 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.625 INCHES IN
CRITICALITY CODE JUSTIFICATIONZZZX
DEPARTURE FROM CITED DESIGNATORMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286 GR500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
QQ-N-281L1Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1222 TY II SLFLKGL1Interchangeable
interchangeable cross-reference
interchangeable
211072227L1Interchangeable
interchangeable cross-reference
interchangeable
211068791L1Interchangeable
Same NIIN cross-reference
interchangeable
MIL-DTL-1222L1Interchangeable
Same NIIN cross-reference
interchangeable
QQ-N-286L1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SIZE 0.625-11UNRC-3A X 2.250?
SIZE 0.625-11UNRC-3A X 2.250 is a SIZE 0.625-11UNRC-3A X 2.250.
What parts can replace SIZE 0.625-11UNRC-3A X 2.250?
There are 11 known substitutes for SIZE 0.625-11UNRC-3A X 2.250: QQ-N-281L1, MIL-DTL-1222 TY II SLFLKGL1, 211072227L1 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SIZE 0.625-11UNRC-3A X 2.250?
SIZE 0.625-11UNRC-3A X 2.250 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-460-2992. 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