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6643307-065 — STUD,PLAIN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6643307-065: STUD,PLAIN.

The STUD,PLAIN is a the manufacturer industrial component. Key specifications include thread_class: 2A STUD THREAD A, thread_length: 1.500 INCHES NOMINAL STUD THREAD IN, overall_length: 3.260 INCHES NOMINAL IN, nominal_thread_size: 0.625 INCHES STUD THREAD IN, thread_quantity_per_inch: 11 STUD THREAD, thread_series_designator: UNIFIED NATIONAL COARSE (UNC) STUD THREAD. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-415-4656, 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
6643307-065
NSN: 5307-01-415-4656
FSC: 5307 — Studs
CAGE: 01289 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
thread_class2A STUD THREAD A
thread_length1.500 INCHES NOMINAL STUD THREAD IN
overall_length3.260 INCHES NOMINAL IN
nominal_thread_size0.625 INCHES STUD THREAD IN
thread_quantity_per_inch11 STUD THREAD
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) STUD THREAD
NSN5307-01-415-4656
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6643307-065 · 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 LENGTH: 1.500 INCHES NOMINAL STUD THREAD IN
•
NOMINAL THREAD SIZE: 0.625 INCHES STUD THREAD IN
•
THREAD CLASS: 2A STUD THREAD A
•
THREAD QUANTITY PER INCH: 11 STUD THREAD
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) STUD THREAD
TECHNICAL CHARACTERISTICS
THREAD LENGTH1.500 INCHES NOMINAL STUD THREAD IN
OVERALL LENGTH3.260 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.625 INCHES STUD THREAD IN
THREAD CLASS2A STUD THREAD A
THREAD QUANTITY PER INCH11 STUD THREAD
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) STUD THREAD
OTHER ITEMS IN FSC 5307 — Studs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5307-00-000-6436 5307-00-001-1578 5307-00-001-1761 5307-00-001-2366 5307-00-001-4491 5307-00-001-4624 5307-00-001-4625
SUBSTITUTES & CROSS-REFERENCES 1
7378E65-108Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6643307-065?
6643307-065 is a STUD,PLAIN.
What parts can replace 6643307-065?
There is 1 known substitute for 6643307-065: 7378E65-108. Substitute compatibility should be verified for your specific system.
What is the NSN for 6643307-065?
6643307-065 is cataloged in the U.S. Government catalog under NSN 5307-01-415-4656. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.