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Technical Data Sheet
PartsTable / COMPONENT / MS35751-140
MS35751-140 ✓ 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 BOLT,SQUARE NECK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: BUTTON, neck_width: 0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN, head_height: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, neck_length: 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN, thread_class: 2A A. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-089-1531, 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
MS35751-140
NSN: 5306-00-089-1531
FSC: 5306
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OVERALL
head_styleBUTTON
neck_width0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
head_height0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
neck_length0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
thread_class2A A
head_diameter1.032 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN
thread_length1.500 INCHES MINIMUM IN
fastener_length6.406 INCHES MINIMUM AND 6.594 INCHES MAXIMUM IN
hardness_rating95.0 ROCKWELL B MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OR ZINC OVERALL
NSN5306-00-089-1531
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS35751-140 · 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
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD DIAMETER: 1.032 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN
•
HARDNESS RATING: 95.0 ROCKWELL B MAXIMUM OVERALL
•
FASTENER LENGTH: 6.406 INCHES MINIMUM AND 6.594 INCHES MAXIMUM IN
•
NECK WIDTH: 0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
HEAD DIAMETER1.032 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN
HARDNESS RATING95.0 ROCKWELL B MAXIMUM OVERALL
FASTENER LENGTH6.406 INCHES MINIMUM AND 6.594 INCHES MAXIMUM IN
NECK WIDTH0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
MS35751-53Upgraded Successor
successor cross-reference
successor
FFB584Upgraded Successor
successor cross-reference
successor
119430Upgraded Successor
successor cross-reference
successor
21260Upgraded Successor
successor cross-reference
successor
120231Upgraded Successor
successor cross-reference
successor
NASM35751Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS35751-140?
MS35751-140 is a BOLT,SQUARE NECK.
What parts can replace MS35751-140?
There are 10 known substitutes for MS35751-140: MS35751-53, FFB584, 119430 and 7 more. Substitute compatibility should be verified for your specific system.
Is MS35751-140 still available?
MS35751-140 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026