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Technical Data Sheet
PartsTable / COMPONENT / WST-275-S02
WST-275-S02 ✓ 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 COMP 302, ring_style: SPIRAL, usage_design: EXTERNAL, inside_diameter: 2.574 INCHES MINIMUM AND 2.604 INCHES MAXIMUM IN, major_thickness: 0.090 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN, strength_rating: ERR-060. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-280-7144, 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
WST-275-S02
NSN: 5325-01-280-7144
FSC: 5325
CAGE: 51814 — SMALLEY STEEL RING CO. (USA)
SPECIFICATIONS
materialSTEEL COMP 302
ring_styleSPIRAL
usage_designEXTERNAL
inside_diameter2.574 INCHES MINIMUM AND 2.604 INCHES MAXIMUM IN
major_thickness0.090 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
strength_ratingERR-060
outside_diameter2.980 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleDOUBLE OVAL
NSN5325-01-280-7144
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: WST-275-S02 · 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
•
RING STYLE: SPIRAL
•
MAJOR THICKNESS: 0.090 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
•
STRENGTH RATING: ERR-060
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66 FED STD 1ST MATERIAL RESPONSE OR AISI 302 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 30302 ASSN STD SINGLE MATERIAL RESPONSE AND MIL-S-5059, TYPE 302 MIL SPEC 2ND MATERIAL RESPONSE AND QQ-S-766, CLASS 302 FED SPEC 3RD MATERIAL RESPONSE
•
MATERIAL: STEEL COMP 302
•
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
•
OUTSIDE DIAMETER: 2.980 INCHES NOMINAL IN
•
INSIDE DIAMETER: 2.574 INCHES MINIMUM AND 2.604 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
RING STYLESPIRAL
MAJOR THICKNESS0.090 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
STRENGTH RATINGERR-060
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66 FED STD 1ST MATERIAL RESPONSE OR AISI 302 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 30302 ASSN STD SINGLE MATERIAL RESPONSE AND MIL-S-5059, TYPE 302 MIL SPEC 2ND MATERIAL RESPONSE AND QQ-S-766, CLASS 302 FED SPEC 3RD MATERIAL RESPONSE
MATERIALSTEEL COMP 302
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
OUTSIDE DIAMETER2.980 INCHES NOMINAL IN
INSIDE DIAMETER2.574 INCHES MINIMUM AND 2.604 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
USAGE DESIGNEXTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
WEB3529AInterchangeable
interchangeable cross-reference
interchangeable
1883611Interchangeable
interchangeable cross-reference
interchangeable
6014AInterchangeable
interchangeable cross-reference
interchangeable
3529Interchangeable
interchangeable cross-reference
interchangeable
5030-1 1-2X12Interchangeable
interchangeable cross-reference
interchangeable
U2FA24-24MBX24MB12Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is WST-275-S02?
WST-275-S02 is a RING,RETAINING.
What parts can replace WST-275-S02?
There are 13 known substitutes for WST-275-S02: WEB3529A, 1883611, 6014A and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for WST-275-S02?
WST-275-S02 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-280-7144. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026