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Technical Data Sheet
PartsTable / COMPONENT / 5/8-11UNC-3A X 4 3/4L1
5/8-11UNC-3A X 4 3/4L1 ✓ 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 5/8-11UNC-3A X 4 3/4L1 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 5307-01-321-7264, 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
5/8-11UNC-3A X 4 3/4L1
NSN: 5307-01-321-7264
FSC: 5307
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
Part Number5/8-11UNC-3A X 4 3/4L1
NSN5307-01-321-7264
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5/8-11UNC-3A X 4 3/4L1 · 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
•
NOMINAL THREAD SIZE: 0.625 INCHES STUD THREAD IN
•
THREAD QUANTITY PER INCH: 11 STUD THREAD
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286,GR 500 FED SPEC SINGLE MATERIAL RESPONSE
•
CRITICALITY CODE JUSTIFICATION: ZZZW
•
MATERIAL: NICKEL ALLOY K-500
•
DEPARTURE FROM CITED DOCUMENT: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.625 INCHES STUD THREAD IN
THREAD QUANTITY PER INCH11 STUD THREAD
THREAD DIRECTIONRIGHT-HAND STUD THREAD
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286,GR 500 FED SPEC SINGLE MATERIAL RESPONSE
CRITICALITY CODE JUSTIFICATIONZZZW
MATERIALNICKEL ALLOY K-500
DEPARTURE FROM CITED DOCUMENTMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
OVERALL LENGTH4.750 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) STUD THREAD
THREAD CLASS3A STUD THREAD A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
501-4675682 ITEM 4Interchangeable
interchangeable cross-reference
interchangeable
501-4675682 ITEM 4L1Interchangeable
interchangeable cross-reference
interchangeable
1.500-06UNC-2A X 5.000L1Interchangeable
interchangeable cross-reference
interchangeable
2642-774-01 ITEM 31L1Interchangeable
interchangeable cross-reference
interchangeable
QQ-N-286, GRADE 500Interchangeable
interchangeable cross-reference
interchangeable
FF-S-86, TYPE VI SELF-LOCKINGL1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5/8-11UNC-3A X 4 3/4L1?
5/8-11UNC-3A X 4 3/4L1 is a 5/8-11UNC-3A X 4 3/4L1.
What parts can replace 5/8-11UNC-3A X 4 3/4L1?
There are 33 known substitutes for 5/8-11UNC-3A X 4 3/4L1: 501-4675682 ITEM 4, 501-4675682 ITEM 4L1, 1.500-06UNC-2A X 5.000L1 and 30 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5/8-11UNC-3A X 4 3/4L1?
5/8-11UNC-3A X 4 3/4L1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-01-321-7264. 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