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Technical Data Sheet
PartsTable / COMPONENT / MS35751-209
MS35751-209 ✓ 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, head_diameter: 1.032 INCHES MINIMUM AND 1.094 INCHES MAXIMUM 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 5306-01-460-3083, 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
MS35751-209
NSN: 5306-01-460-3083
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
head_diameter1.032 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN
fastener_length4.150 INCHES MINIMUM AND 4.330 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
nominal_thread_diameter0.500 INCHES IN
minimum_tensile_strength60000 POUNDS PER SQUARE INCH LBS
material_document_and_classificationASTM A307 GR A ASSN STD SINGLE MATERIAL RESPONSE OR SAE J429 GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5306-01-460-3083
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS35751-209 · 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
•
FASTENER LENGTH: 4.150 INCHES MINIMUM AND 4.330 INCHES MAXIMUM IN
•
MINIMUM TENSILE STRENGTH: 60000 POUNDS PER SQUARE INCH LBS
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY 2 CL 3 FED SPEC 1ST TREATMENT RESPONSE OR MIL-C-81562 TY 2 CL 3 MIL SPEC 1ST TREATMENT RESPONSE OR ASTM B633 TY 2 CL FE/ZN5 ASSN STD 2ND TREATMENT RESPONSE OR MIL-C-81562 TY 2 CL 3 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
•
NECK LENGTH: 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
•
HEAD DIAMETER: 1.032 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
FASTENER LENGTH4.150 INCHES MINIMUM AND 4.330 INCHES MAXIMUM IN
MINIMUM TENSILE STRENGTH60000 POUNDS PER SQUARE INCH LBS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 3 FED SPEC 1ST TREATMENT RESPONSE OR MIL-C-81562 TY 2 CL 3 MIL SPEC 1ST TREATMENT RESPONSE OR ASTM B633 TY 2 CL FE/ZN5 ASSN STD 2ND TREATMENT RESPONSE OR MIL-C-81562 TY 2 CL 3 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
NECK LENGTH0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
HEAD DIAMETER1.032 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN
HEAD HEIGHT0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.500 INCHES IN
SURFACE TREATMENTCADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
NECK WIDTH0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A307 GR A ASSN STD SINGLE MATERIAL RESPONSE OR SAE J429 GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
SK-2400-8Upgraded Successor
successor cross-reference
successor
489070Upgraded Successor
successor cross-reference
successor
NASM35751Upgraded Successor
successor cross-reference
successor
FF-B-584Upgraded Successor
successor cross-reference
successor
ASME-B18.5Upgraded Successor
successor cross-reference
successor
ANSI B18.5Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS35751-209?
MS35751-209 is a BOLT,SQUARE NECK.
What parts can replace MS35751-209?
There are 13 known substitutes for MS35751-209: SK-2400-8, 489070, NASM35751 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS35751-209?
MS35751-209 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-460-3083. 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