PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 931B-4SE.375
931B-4SE.375 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The 931B-4SE.375 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-912-7237, 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
931B-4SE.375
NSN: 5325-00-912-7237
FSC: 5325
CAGE: 01556 — STANLEY ENGINEERED FASTENING LLC (USA)
SPECIFICATIONS
Part Number931B-4SE.375
NSN5325-00-912-7237
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 931B-4SE.375 · 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
•
LENGTH: 0.500 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
STYLE DESIGNATOR: KEYLOCK
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
TOP UNTHREADED PORTION OUTSIDE DIAMETER: 0.341 INCHES NOMINAL IN
•
INSERT SIZE: 0.438-20 UNF 3A A
•
TOP PORTION UNTHREADED OUTSIDE LENGTH: 0.052 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.437 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
LENGTH0.500 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
STYLE DESIGNATORKEYLOCK
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TOP UNTHREADED PORTION OUTSIDE DIAMETER0.341 INCHES NOMINAL IN
INSERT SIZE0.438-20 UNF 3A A
TOP PORTION UNTHREADED OUTSIDE LENGTH0.052 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.437 INCHES NOMINAL IN
MATERIALSTEEL COMP 303 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
1A1063Interchangeable
interchangeable cross-reference
interchangeable
C311-1Interchangeable
interchangeable cross-reference
interchangeable
24778Interchangeable
interchangeable cross-reference
interchangeable
13555Interchangeable
interchangeable cross-reference
interchangeable
00904B-104B04-02800Interchangeable
interchangeable cross-reference
interchangeable
5904039Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 931B-4SE.375?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 931B-4SE.375?
931B-4SE.375 is a 931B-4SE.375.
What parts can replace 931B-4SE.375?
There are 8 known substitutes for 931B-4SE.375: 1A1063, C311-1, 24778 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 931B-4SE.375?
931B-4SE.375 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-912-7237. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 931B-4SE.375

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026