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Technical Data Sheet
PartsTable / COMPONENT / RS218
RS218 ✓ 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: SPIRAL, usage_design: EXTERNAL, inside_diameter: 2.092 INCHES NOMINAL IN, major_thickness: 0.049 INCHES NOMINAL IN, outside_diameter: 2.368 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 5325-00-129-9445, 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
RS218
NSN: 5325-00-129-9445
FSC: 5325
CAGE: 80756 — SPIROLOX INC (USA)
SPECIFICATIONS
materialSTEEL
ring_styleSPIRAL
usage_designEXTERNAL
inside_diameter2.092 INCHES NOMINAL IN
major_thickness0.049 INCHES NOMINAL IN
outside_diameter2.368 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleDOUBLE OVAL
NSN5325-00-129-9445
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: RS218 · 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
•
MATERIAL: STEEL
•
MAJOR THICKNESS: 0.049 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 2.368 INCHES NOMINAL IN
•
INSIDE DIAMETER: 2.092 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
USAGE DESIGN: EXTERNAL
TECHNICAL CHARACTERISTICS (FLIS)
RING STYLESPIRAL
MATERIALSTEEL
MAJOR THICKNESS0.049 INCHES NOMINAL IN
OUTSIDE DIAMETER2.368 INCHES NOMINAL IN
INSIDE DIAMETER2.092 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
CASEHARDENING INDICATORNOT CASEHARDENED
USAGE DESIGNEXTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
32725Interchangeable
interchangeable cross-reference
interchangeable
AS32725Interchangeable
interchangeable cross-reference
interchangeable
A1913PC129Interchangeable
interchangeable cross-reference
interchangeable
A1911PC129Interchangeable
interchangeable cross-reference
interchangeable
5360PL0661072Interchangeable
interchangeable cross-reference
interchangeable
59-10058Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RS218?
RS218 is a RING,RETAINING.
What parts can replace RS218?
There are 11 known substitutes for RS218: 32725, AS32725, A1913PC129 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RS218?
RS218 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-129-9445. 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