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Technical Data Sheet
PartsTable / COMPONENT / MS90727-128
MS90727-128 ✓ 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: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.250 INCHES MINIMUM AND 1.438 INCHES MAXIMUM IN, fastener_length: 5.406 INCHES MINIMUM AND 5.500 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 5305-00-719-5275, 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
MS90727-128
NSN: 5305-00-719-5275
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_height0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
thread_class2A A
thread_length1.250 INCHES MINIMUM AND 1.438 INCHES MAXIMUM IN
fastener_length5.406 INCHES MINIMUM AND 5.500 INCHES MAXIMUM IN
hardness_rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentZINC AND CHROMATE OVERALL
width_between_flats0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
nominal_thread_diameter0.500 INCHES IN
minimum_tensile_strength150000 POUNDS PER SQUARE INCH LBS
NSN5305-00-719-5275
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS90727-128 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
THREAD LENGTH: 1.250 INCHES MINIMUM AND 1.438 INCHES MAXIMUM IN
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
•
HEAD STYLE: HEXAGON
•
THREAD QUANTITY PER INCH: 20
•
MATERIAL: STEEL OVERALL
•
THREAD SERIES DESIGNATOR: UNF
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES IN
THREAD LENGTH1.250 INCHES MINIMUM AND 1.438 INCHES MAXIMUM IN
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEHEXAGON
THREAD QUANTITY PER INCH20
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNF
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J429 GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 10P STYLE AND 8 GRADE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
403504Interchangeable
interchangeable cross-reference
interchangeable
5305007168156Interchangeable
interchangeable cross-reference
interchangeable
44477-6Interchangeable
interchangeable cross-reference
interchangeable
FF-S-85Interchangeable
Same NIIN cross-reference
interchangeable
MS90726-128Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS90727-128?
MS90727-128 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace MS90727-128?
There are 5 known substitutes for MS90727-128: 403504, 5305007168156, 44477-6 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS90727-128?
MS90727-128 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-719-5275. 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