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Technical Data Sheet
PartsTable / COMPONENT / MS90708-50
MS90708-50 ✓ 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 RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, ring_style: SPECIAL, usage_design: EXTERNAL, inside_diameter: 0.457 INCHES MINIMUM AND 0.461 INCHES MAXIMUM IN, major_thickness: 0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN, casehardening_indicator: NOT CASEHARDENED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-065-4055, 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
MS90708-50
NSN: 5325-00-065-4055
FSC: 5325
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL
ring_styleSPECIAL
usage_designEXTERNAL
inside_diameter0.457 INCHES MINIMUM AND 0.461 INCHES MAXIMUM IN
major_thickness0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating65.5 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 70.5 ROCKWELL SUPERFICIAL 30-N MAXIMUM
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationFED STD 66,AISI C1066 THRU C1090 FED STD SINGLE MATERIAL RESPONSE OR SAE 1070 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE
NSN5325-00-065-4055
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS90708-50 · 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
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MAJOR THICKNESS: 0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
•
MATERIAL: STEEL
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66,AISI C1066 THRU C1090 FED STD SINGLE MATERIAL RESPONSE OR SAE 1070 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE
•
USAGE DESIGN: EXTERNAL
•
RING STYLE: SPECIAL
•
MATERIAL HARDNESS RATING: 65.5 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 70.5 ROCKWELL SUPERFICIAL 30-N MAXIMUM
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MAJOR THICKNESS0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
MATERIALSTEEL
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66,AISI C1066 THRU C1090 FED STD SINGLE MATERIAL RESPONSE OR SAE 1070 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE
USAGE DESIGNEXTERNAL
RING STYLESPECIAL
MATERIAL HARDNESS RATING65.5 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 70.5 ROCKWELL SUPERFICIAL 30-N MAXIMUM
CASEHARDENING INDICATORNOT CASEHARDENED
INSIDE DIAMETER0.457 INCHES MINIMUM AND 0.461 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
642741Interchangeable
interchangeable cross-reference
interchangeable
510750Interchangeable
interchangeable cross-reference
interchangeable
333005Interchangeable
interchangeable cross-reference
interchangeable
526453Interchangeable
interchangeable cross-reference
interchangeable
510768Interchangeable
interchangeable cross-reference
interchangeable
126281Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS90708-50?
MS90708-50 is a RING,RETAINING.
What parts can replace MS90708-50?
There are 10 known substitutes for MS90708-50: 642741, 510750, 333005 and 7 more. Substitute compatibility should be verified for your specific system.
Is MS90708-50 still available?
MS90708-50 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