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PartsTable / COMPONENT / MS35290-91
MS35290-91 ✓ 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 material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.125 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN, fastener_length: 2.000 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 5305-00-266-6361, 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
MS35290-91
NSN: 5305-00-266-6361
FSC: 5305
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
thread_class2A A
thread_length1.125 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
fastener_length2.000 INCHES NOMINAL IN
hardness_rating100.0 ROCKWELL B MAXIMUM OVERALL
thread_directionRIGHT-HAND
width_between_flats0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
minimum_yield_strength55000 POUNDS PER SQUARE INCH LBS
nominal_thread_diameter0.438 INCHES IN
minimum_tensile_strength69000 POUNDS PER SQUARE INCH LBS
NSN5305-00-266-6361
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS35290-91 · 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 STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
THREAD LENGTH: 1.125 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.000 INCHES NOMINAL IN
•
HARDNESS RATING: 100.0 ROCKWELL B MAXIMUM OVERALL
•
THREAD SERIES DESIGNATOR: UNF
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
THREAD LENGTH1.125 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
FASTENER LENGTH2.000 INCHES NOMINAL IN
HARDNESS RATING100.0 ROCKWELL B MAXIMUM OVERALL
THREAD SERIES DESIGNATORUNF
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MINIMUM YIELD STRENGTH55000 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
FFS85AMEND2TYPE2STYLE10PGRADE2Interchangeable
interchangeable cross-reference
interchangeable
MS35289-60Interchangeable
interchangeable cross-reference
interchangeable
3578Interchangeable
interchangeable cross-reference
interchangeable
MS35289-89Interchangeable
interchangeable cross-reference
interchangeable
MS35289-115Interchangeable
interchangeable cross-reference
interchangeable
MS35290-6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS35290-91?
MS35290-91 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace MS35290-91?
There are 11 known substitutes for MS35290-91: FFS85AMEND2TYPE2STYLE10PGRADE2, MS35289-60, 3578 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS35290-91?
MS35290-91 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-266-6361. 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