PartsTable
Technical Data Sheet
Download PDF

EP-0002957 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

EP-0002957: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: PLASTIC FLUOROCARBON, temp_rating: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF, hardness_rating: 90.0 SHORE DUROMETER A NOMINAL, outside_diameter: 0.5 INCHES NOMINAL IN, center_hole_diameter: 0.375 INCHES NOMINAL IN, cross-sectional_height: 0.063 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-618-5232, 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
EP-0002957
NSN: 5331-01-618-5232
FSC: 5331 — O-ring
CAGE: 1NWY2 — INDEPENDENT ROUGH TERRAIN CENTER LLC (USA)
SPECIFICATIONS
materialPLASTIC FLUOROCARBON
temp_rating-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
hardness_rating90.0 SHORE DUROMETER A NOMINAL
outside_diameter0.5 INCHES NOMINAL IN
center_hole_diameter0.375 INCHES NOMINAL IN
cross-sectional_height0.063 INCHES NOMINAL IN
end_item_identification3930015999978
NSN5331-01-618-5232
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: EP-0002957 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
•
TEMP RATING: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.063 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.5 INCHES NOMINAL IN
•
HARDNESS RATING: 90.0 SHORE DUROMETER A NOMINAL
•
CENTER HOLE DIAMETER: 0.375 INCHES NOMINAL IN
•
MATERIAL: PLASTIC FLUOROCARBON
TECHNICAL CHARACTERISTICS
TEMP RATING-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.063 INCHES NOMINAL IN
OUTSIDE DIAMETER0.5 INCHES NOMINAL IN
HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER0.375 INCHES NOMINAL IN
END ITEM IDENTIFICATION3930015999978
MATERIALPLASTIC FLUOROCARBON
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
0414030Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy EP-0002957?
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 EP-0002957?
EP-0002957 is a O-RING.
What parts can replace EP-0002957?
There is 1 known substitute for EP-0002957: 0414030. Substitute compatibility should be verified for your specific system.
What is the NSN for EP-0002957?
EP-0002957 is cataloged in the U.S. Government catalog under NSN 5331-01-618-5232. 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 — EP-0002957

✓ 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.