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Technical Data Sheet
PartsTable / COMPONENT / 7521285
7521285 ✓ 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, usage_design: EXTERNAL, inside_diameter: 0.819 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN, major_thickness: 0.062 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN, casehardening_indicator: NOT CASEHARDENED, cross-sectional_shape_style: ROUNDED CORNERS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-752-1285, 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
7521285
NSN: 5325-00-752-1285
FSC: 5325
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL
ring_styleE
usage_designEXTERNAL
inside_diameter0.819 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
major_thickness0.062 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleROUNDED CORNERS
NSN5325-00-752-1285
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 7521285 · 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
•
MAJOR THICKNESS: 0.062 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: ROUNDED CORNERS
•
MATERIAL: STEEL
•
RING STYLE: E
•
INSIDE DIAMETER: 0.819 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
•
USAGE DESIGN: EXTERNAL
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS (FLIS)
MAJOR THICKNESS0.062 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEROUNDED CORNERS
MATERIALSTEEL
RING STYLEE
INSIDE DIAMETER0.819 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
USAGE DESIGNEXTERNAL
CASEHARDENING INDICATORNOT CASEHARDENED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
25K40158Interchangeable
interchangeable cross-reference
interchangeable
PRP902-23Interchangeable
interchangeable cross-reference
interchangeable
2-218 N304-75Interchangeable
interchangeable cross-reference
interchangeable
07-0501-0018Interchangeable
interchangeable cross-reference
interchangeable
1214-0507Interchangeable
interchangeable cross-reference
interchangeable
35-220Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7521285?
7521285 is a RING,RETAINING.
What parts can replace 7521285?
There are 15 known substitutes for 7521285: 25K40158, PRP902-23, 2-218 N304-75 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7521285?
7521285 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-752-1285. 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