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Technical Data Sheet
PartsTable / COMPONENT / MS35751-143
MS35751-143 ✓ 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 5306-00-089-0176, 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
MS35751-143
NSN: 5306-00-089-0176
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_length7.906 INCHES MINIMUM AND 8.094 INCHES MAXIMUM IN
hardness_rating95.0 ROCKWELL B MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
NSN5306-00-089-0176
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS35751-143 · 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
•
HEAD HEIGHT: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
•
FASTENER LENGTH: 7.906 INCHES MINIMUM AND 8.094 INCHES MAXIMUM IN
•
THREAD CLASS: 2A A
•
THREAD QUANTITY PER INCH: 13
•
HEAD STYLE: BUTTON
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM-B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
HEAD DIAMETER: 1.032 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN
•
NECK WIDTH: 0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HEAD HEIGHT0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
FASTENER LENGTH7.906 INCHES MINIMUM AND 8.094 INCHES MAXIMUM IN
THREAD CLASS2A A
THREAD QUANTITY PER INCH13
HEAD STYLEBUTTON
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM-B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HEAD DIAMETER1.032 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN
NECK WIDTH0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
SURFACE TREATMENTZINC OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
MS35751-164Upgraded Successor
successor cross-reference
successor
NASM35751Upgraded Successor
successor cross-reference
successor
MS35751-209Upgraded Successor
successor cross-reference
successor
ANSI B18.5Upgraded Successor
successor cross-reference
successor
ANSI B18-5Upgraded Successor
successor cross-reference
successor
93180A210Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS35751-143?
MS35751-143 is a BOLT,SQUARE NECK.
What parts can replace MS35751-143?
There are 17 known substitutes for MS35751-143: MS35751-164, NASM35751, MS35751-209 and 14 more. Substitute compatibility should be verified for your specific system.
Is MS35751-143 still available?
MS35751-143 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