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TR24671-428-14 — STUD,LOCKED IN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

TR24671-428-14: STUD,LOCKED IN.

The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include thread_class: 3A NUT THREAD A A, thread_length: 0.560 INCHES NOMINAL NUT THREAD B IN, locking_feature: KEY INSERTS, thread_direction: RIGHT-HAND NUT THREAD A, nominal_thread_size: 0.25 INCHES NUT THREAD A IN, thread_quantity_per_inch: 28 NUT THREAD A. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-643-6129, 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
TR24671-428-14
NSN: 5307-01-643-6129
FSC: 5307 — Studs
CAGE: 29372 — HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS (USA)
SPECIFICATIONS
thread_class3A NUT THREAD A A
thread_length0.560 INCHES NOMINAL NUT THREAD B IN
locking_featureKEY INSERTS
thread_directionRIGHT-HAND NUT THREAD A
nominal_thread_size0.25 INCHES NUT THREAD A IN
thread_quantity_per_inch28 NUT THREAD A
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) NUT THREAD A
NSN5307-01-643-6129
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: TR24671-428-14 · 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: 0.375 INCHES NOMINAL NUT THREAD A IN
•
THREAD DIRECTION: RIGHT-HAND NUT THREAD A
•
NOMINAL THREAD SIZE: 0.375 INCHES NUT THREAD B IN
•
LOCKING FEATURE: KEY INSERTS
•
THREAD CLASS: 3A NUT THREAD A A
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.375 INCHES NOMINAL NUT THREAD A IN
THREAD LENGTH0.560 INCHES NOMINAL NUT THREAD B IN
THREAD DIRECTIONRIGHT-HAND NUT THREAD A
THREAD DIRECTIONRIGHT-HAND NUT THREAD B
NOMINAL THREAD SIZE0.375 INCHES NUT THREAD B IN
NOMINAL THREAD SIZE0.25 INCHES NUT THREAD A IN
LOCKING FEATUREKEY INSERTS
THREAD CLASS3A NUT THREAD A A
THREAD CLASS2A NUT THREAD B A
THREAD QUANTITY PER INCH16 NUT THREAD B
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is TR24671-428-14?
TR24671-428-14 is a STUD,LOCKED IN.
What is the NSN for TR24671-428-14?
TR24671-428-14 is cataloged in the U.S. Government catalog under NSN 5307-01-643-6129. 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.