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Technical Data Sheet
PartsTable / COMPONENT / 931B-2SE0312
931B-2SE0312 ✓ 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 INSERT,SCREW THREAD is a the manufacturer industrial component. Key specifications include length: 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN, material: STEEL COMP 303 OVERALL, insert_size: 0.312-36 UNF 3A A, style_designator: KEYLOCK, surface_treatment: PASSIVATE OVERALL, width_across_flats: 0.312 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-943-5278, 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-2SE0312
NSN: 5325-00-943-5278
FSC: 5325
CAGE: 01556 — STANLEY ENGINEERED FASTENING LLC (USA)
SPECIFICATIONS
length0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
materialSTEEL COMP 303 OVERALL
insert_size0.312-36 UNF 3A A
style_designatorKEYLOCK
surface_treatmentPASSIVATE OVERALL
width_across_flats0.312 INCHES NOMINAL IN
material_document_and_classificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
top_portion_unthreaded_outside_length0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
top_unthreaded_portion_outside_diameter0.234 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
NSN5325-00-943-5278
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 931B-2SE0312 · 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
•
STYLE DESIGNATOR: KEYLOCK
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
WIDTH ACROSS FLATS: 0.312 INCHES NOMINAL IN
•
TOP UNTHREADED PORTION OUTSIDE DIAMETER: 0.234 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
•
TOP PORTION UNTHREADED OUTSIDE LENGTH: 0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
•
INSERT SIZE: 0.312-36 UNF 3A A
•
LENGTH: 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORKEYLOCK
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
WIDTH ACROSS FLATS0.312 INCHES NOMINAL IN
TOP UNTHREADED PORTION OUTSIDE DIAMETER0.234 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
TOP PORTION UNTHREADED OUTSIDE LENGTH0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
INSERT SIZE0.312-36 UNF 3A A
LENGTH0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
MATERIALSTEEL COMP 303 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
24177Interchangeable
interchangeable cross-reference
interchangeable
3517Interchangeable
interchangeable cross-reference
interchangeable
22575Interchangeable
interchangeable cross-reference
interchangeable
1795M1Interchangeable
interchangeable cross-reference
interchangeable
4524DInterchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 931B-2SE0312?
931B-2SE0312 is a INSERT,SCREW THREAD.
What parts can replace 931B-2SE0312?
There are 8 known substitutes for 931B-2SE0312: 24177, 3517, 22575 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 931B-2SE0312?
931B-2SE0312 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-943-5278. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026