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Technical Data Sheet
PartsTable / COMPONENT / L140931
L140931 ✓ 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 SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 9.82 MILLIMETERS MINIMUM AND 10.18 MILLIMETERS MAXIMUM MM, thread_length: 38.0 MILLIMETERS NOMINAL MM, fastener_length: 120.0 MILLIMETERS NOMINAL MM, thread_direction: RIGHT-HAND, surface_treatment: ZINC OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-575-0638, 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
L140931
NSN: 5305-01-575-0638
FSC: 5305
CAGE: 0ADD7 — BAE SYSTEMS ADVANCED TECHNOLOGIES INC DBA BAE SYSTEMS AT (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height9.82 MILLIMETERS MINIMUM AND 10.18 MILLIMETERS MAXIMUM MM
thread_length38.0 MILLIMETERS NOMINAL MM
fastener_length120.0 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
width_between_flats23.67 MILLIMETERS MINIMUM AND 24.00 MILLIMETERS MAXIMUM MM
end_item_identification2355-01-559-0791;2355-01-549-5271
nominal_thread_diameter16.0 MILLIMETERS MM
thread_series_designatorM
specification/standard_dataD8286-DIN931 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
thread_pitch_in_millimeters2.0
NSN5305-01-575-0638
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: L140931 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
29822Interchangeable
interchangeable cross-reference
interchangeable
53-B-2Interchangeable
interchangeable cross-reference
interchangeable
53-B-0002Interchangeable
interchangeable cross-reference
interchangeable
6253224Interchangeable
interchangeable cross-reference
interchangeable
L518000127Interchangeable
interchangeable cross-reference
interchangeable
L140931-14065Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is L140931?
L140931 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace L140931?
There are 18 known substitutes for L140931: 29822, 53-B-2, 53-B-0002 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for L140931?
L140931 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-575-0638. 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