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740131-04 — STUD,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

740131-04: STUD,TURNLOCK FASTENER.

The STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include diameter: 0.373 INCHES NOMINAL IN, material: STEEL COMP 302 OR STEEL COMP 316 OVERALL, drive_type: SOCKET, grip_length: 0.344 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN, extension_length: 0.234 INCHES NOMINAL IN, special_features: 4 LEAD THD. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-438-9014, 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
740131-04
NSN: 5325-00-438-9014
FSC: 5325 — Fastening Devices
CAGE: 35351 — GE AVIATION SYSTEMS LLC (USA)
SPECIFICATIONS
diameter0.373 INCHES NOMINAL IN
materialSTEEL COMP 302 OR STEEL COMP 316 OVERALL
drive_typeSOCKET
grip_length0.344 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
extension_length0.234 INCHES NOMINAL IN
special_features4 LEAD THD
surface_treatmentPASSIVATE AND OXIDE FILM OVERALL
securing_device_typeRING
turnlock_stud_head_styleFILLISTER
stud_shank_major_diameter0.247 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
turnlock_stud_shank_styleSTUD SHANK
stud_thread_size_and_series/type_designator0.164-32 UNIFIED NATIONAL COARSE (UNC)
NSN5325-00-438-9014
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 740131-04 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-13924 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
•
DRIVE TYPE: SOCKET
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
EXTENSION LENGTH: 0.234 INCHES NOMINAL IN
•
DIAMETER: 0.373 INCHES NOMINAL IN
•
SECURING DEVICE TYPE: RING
•
TURNLOCK STUD HEAD STYLE: FILLISTER
•
STUD SHANK MAJOR DIAMETER: 0.247 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
DRIVE TYPESOCKET
TURNLOCK STUD SHANK STYLESTUD SHANK
EXTENSION LENGTH0.234 INCHES NOMINAL IN
DIAMETER0.373 INCHES NOMINAL IN
SECURING DEVICE TYPERING
TURNLOCK STUD HEAD STYLEFILLISTER
STUD SHANK MAJOR DIAMETER0.247 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
SPECIAL FEATURES4 LEAD THD
SURFACE TREATMENTPASSIVATE AND OXIDE FILM OVERALL
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES 1
5882665-4Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 740131-04?
740131-04 is a STUD,TURNLOCK FASTENER.
What parts can replace 740131-04?
There is 1 known substitute for 740131-04: 5882665-4. Substitute compatibility should be verified for your specific system.
What is the NSN for 740131-04?
740131-04 is cataloged in the U.S. Government catalog under NSN 5325-00-438-9014. 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.