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NCS4-2-38 — STUD,SELF-LOCKING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

NCS4-2-38: STUD,SELF-LOCKING.

The STUD,SELF-LOCKING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303, head_length: 0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN, thread_class: 2A NUT THREAD A, head_diameter: 0.197 INCHES MINIMUM AND 0.201 INCHES MAXIMUM IN, thread_length: 1.173 INCHES MINIMUM AND 1.203 INCHES MAXIMUM NUT THREAD IN, overall_length: 1.226 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-478-0730, 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
NCS4-2-38
NSN: 5307-00-478-0730
FSC: 5307 — Studs
CAGE: 57227 — PICS SCREW MACHINE, INC. DBA PICS SCREW MACHINE INC (USA)
SPECIFICATIONS
materialSTEEL COMP 303
head_length0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
thread_class2A NUT THREAD A
head_diameter0.197 INCHES MINIMUM AND 0.201 INCHES MAXIMUM IN
thread_length1.173 INCHES MINIMUM AND 1.203 INCHES MAXIMUM NUT THREAD IN
overall_length1.226 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN
locking_featureSELF-CLINCHING HEAD
style_designatorSELF-LOCKING
thread_directionRIGHT-HAND NUT THREAD
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.112 INCHES NUT THREAD IN
distance_across_flats0.250 INCHES NOMINAL IN
NSN5307-00-478-0730
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: NCS4-2-38 · 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-F-14072,E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 1.173 INCHES MINIMUM AND 1.203 INCHES MAXIMUM NUT THREAD IN
•
STYLE DESIGNATOR: SELF-LOCKING
•
THREAD DIRECTION: RIGHT-HAND NUT THREAD
•
NOMINAL THREAD SIZE: 0.112 INCHES NUT THREAD IN
•
HEAD LENGTH: 0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
•
LOCKING FEATURE: SELF-CLINCHING HEAD
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH1.173 INCHES MINIMUM AND 1.203 INCHES MAXIMUM NUT THREAD IN
STYLE DESIGNATORSELF-LOCKING
OVERALL LENGTH1.226 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.112 INCHES NUT THREAD IN
HEAD LENGTH0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
LOCKING FEATURESELF-CLINCHING HEAD
SURFACE TREATMENTPASSIVATE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
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
107329-29Reference 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 NCS4-2-38?
NCS4-2-38 is a STUD,SELF-LOCKING.
What parts can replace NCS4-2-38?
There is 1 known substitute for NCS4-2-38: 107329-29. Substitute compatibility should be verified for your specific system.
What is the NSN for NCS4-2-38?
NCS4-2-38 is cataloged in the U.S. Government catalog under NSN 5307-00-478-0730. 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.