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6289651 — STUD,SHOULDERED AND STEPPED

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6289651: STUD,SHOULDERED AND STEPPED.

The STUD,SHOULDERED AND STEPPED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303, thread_class: 2A STUD THREAD A, thread_length: 3.120 INCHES NOMINAL STUD THREAD IN, overall_length: 3.940 INCHES MINIMUM AND 4.060 INCHES MAXIMUM IN, shoulder_length: 1.500 INCHES NOMINAL IN, style_designator: SHOULDERED AND STEPPED. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-258-9635, 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
6289651
NSN: 5307-01-258-9635
FSC: 5307 — Studs
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 303
thread_class2A STUD THREAD A
thread_length3.120 INCHES NOMINAL STUD THREAD IN
overall_length3.940 INCHES MINIMUM AND 4.060 INCHES MAXIMUM IN
shoulder_length1.500 INCHES NOMINAL IN
style_designatorSHOULDERED AND STEPPED
thread_directionRIGHT-HAND STUD THREAD
shoulder_diameter0.625 INCHES NOMINAL IN
nominal_thread_size0.375 INCHES STUD THREAD IN
end_item_identification1010-01-233-9493,AAVP7A1
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) STUD THREAD
NSN5307-01-258-9635
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6289651 · 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: 3.120 INCHES NOMINAL STUD THREAD IN
•
STYLE DESIGNATOR: SHOULDERED AND STEPPED
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
NOMINAL THREAD SIZE: 0.375 INCHES STUD THREAD IN
•
SHOULDER DIAMETER: 0.625 INCHES NOMINAL IN
•
THREAD CLASS: 2A STUD THREAD A
TECHNICAL CHARACTERISTICS
THREAD LENGTH3.120 INCHES NOMINAL STUD THREAD IN
STYLE DESIGNATORSHOULDERED AND STEPPED
OVERALL LENGTH3.940 INCHES MINIMUM AND 4.060 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
NOMINAL THREAD SIZE0.375 INCHES STUD THREAD IN
SHOULDER DIAMETER0.625 INCHES NOMINAL IN
THREAD CLASS2A STUD THREAD A
END ITEM IDENTIFICATION1010-01-233-9493,AAVP7A1
MATERIALSTEEL COMP 303
SHOULDER LENGTH1.500 INCHES NOMINAL IN
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
419258Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 6289651?
6289651 is a STUD,SHOULDERED AND STEPPED.
What parts can replace 6289651?
There is 1 known substitute for 6289651: 419258. Substitute compatibility should be verified for your specific system.
What is the NSN for 6289651?
6289651 is cataloged in the U.S. Government catalog under NSN 5307-01-258-9635. 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.