PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 5/8-11UNC-2A X 6 1/2L1
5/8-11UNC-2A X 6 1/2L1 ✓ 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-2A X 6 1/2L1 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 5307-00-865-8375, 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-2A X 6 1/2L1
NSN: 5307-00-865-8375
FSC: 5307
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
Part Number5/8-11UNC-2A X 6 1/2L1
NSN5307-00-865-8375
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5/8-11UNC-2A X 6 1/2L1 · 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
•
NONDEFINITIVE SPEC/STD DATA: 4 TYPE
•
CRITICALITY CODE JUSTIFICATION: ZZZX
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286,CL A FED SPEC SINGLE MATERIAL RESPONSE
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED
•
DEPARTURE FROM CITED DESIGNATOR: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
•
THREAD DIRECTION: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
•
THREAD QUANTITY PER INCH: 11 LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATA4 TYPE
CRITICALITY CODE JUSTIFICATIONZZZX
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286,CL A FED SPEC SINGLE MATERIAL RESPONSE
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED
DEPARTURE FROM CITED DESIGNATORMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
THREAD QUANTITY PER INCH11 LOCATION NOT OTHERWISE SPECIFIED
SPECIAL FEATURESFURNISHED WITH 2 SELF-LOCKING NUTS
OVERALL LENGTH6.500 INCHES NOMINAL IN
MATERIALNICKEL ALLOY K-500
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
655-8782PCF13L1Interchangeable
interchangeable cross-reference
interchangeable
SS580-845-1930038PC1L1Interchangeable
interchangeable cross-reference
interchangeable
655-8782PCF13Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1222Interchangeable
interchangeable cross-reference
interchangeable
MIL-S-001222L1Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1222,TYIV,GR500Interchangeable
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-2A X 6 1/2L1?
5/8-11UNC-2A X 6 1/2L1 is a 5/8-11UNC-2A X 6 1/2L1.
What parts can replace 5/8-11UNC-2A X 6 1/2L1?
There are 28 known substitutes for 5/8-11UNC-2A X 6 1/2L1: 655-8782PCF13L1, SS580-845-1930038PC1L1, 655-8782PCF13 and 25 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5/8-11UNC-2A X 6 1/2L1?
5/8-11UNC-2A X 6 1/2L1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-865-8375. 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