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649-079-401-0 — STUD,SELF-LOCKING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

649-079-401-0: STUD,SELF-LOCKING.

The STUD,SELF-LOCKING is a the manufacturer industrial component. Key specifications include thread_class: 3A NUT THREAD A, overall_length: 0.998 INCHES NOMINAL IN, locking_feature: GRIPPING PRONGS, thread_direction: RIGHT-HAND NUT THREAD, nominal_thread_size: 0.250 INCHES NUT THREAD IN, thread_quantity_per_inch: 28 NUT THREAD. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-180-1771, 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
649-079-401-0
NSN: 5307-01-180-1771
FSC: 5307 — Studs
CAGE: 58828 — CFM INTERNATIONAL INC DBA CFM INTERNATIONAL (USA)
SPECIFICATIONS
thread_class3A NUT THREAD A
overall_length0.998 INCHES NOMINAL IN
locking_featureGRIPPING PRONGS
thread_directionRIGHT-HAND NUT THREAD
nominal_thread_size0.250 INCHES NUT THREAD IN
thread_quantity_per_inch28 NUT THREAD
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) NUT THREAD
NSN5307-01-180-1771
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 649-079-401-0 · 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 DIRECTION: RIGHT-HAND NUT THREAD
•
NOMINAL THREAD SIZE: 0.250 INCHES NUT THREAD IN
•
LOCKING FEATURE: GRIPPING PRONGS
•
THREAD CLASS: 3A NUT THREAD A
•
THREAD QUANTITY PER INCH: 28 NUT THREAD
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF) NUT THREAD
TECHNICAL CHARACTERISTICS
OVERALL LENGTH0.998 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.250 INCHES NUT THREAD IN
LOCKING FEATUREGRIPPING PRONGS
THREAD CLASS3A NUT THREAD A
THREAD QUANTITY PER INCH28 NUT THREAD
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) NUT 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 649-079-401-0?
649-079-401-0 is a STUD,SELF-LOCKING.
What is the NSN for 649-079-401-0?
649-079-401-0 is cataloged in the U.S. Government catalog under NSN 5307-01-180-1771. 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.