PartsTable
Technical Data Sheet
Download PDF

R431002121 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

R431002121: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER ETHYLENE-PROPYLENE CLASS EPM, center_hole_diameter: 0.463 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN, cross-sectional_height: 0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-460-4683, 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
R431002121
NSN: 5331-00-460-4683
FSC: 5331 — O-ring
CAGE: 7AJK0 — AVENTICS CORP DIV AVENTICS CORPORATION (USA)
SPECIFICATIONS
materialRUBBER ETHYLENE-PROPYLENE CLASS EPM
center_hole_diameter0.463 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN
cross-sectional_height0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
NSN5331-00-460-4683
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: R431002121 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CROSS-SECTIONAL HEIGHT: 0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.463 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN
•
MATERIAL: RUBBER ETHYLENE-PROPYLENE CLASS EPM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.463 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN
MATERIALRUBBER ETHYLENE-PROPYLENE CLASS EPM
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 1
P49780-0906Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy R431002121?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is R431002121?
R431002121 is a O-RING.
What parts can replace R431002121?
There is 1 known substitute for R431002121: P49780-0906. Substitute compatibility should be verified for your specific system.
What is the NSN for R431002121?
R431002121 is cataloged in the U.S. Government catalog under NSN 5331-00-460-4683. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — R431002121

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.