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EP-0002948 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

EP-0002948: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE NITRILE, temp_rating: -40.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, hardness_rating: 90.0 SHORE DUROMETER A NOMINAL, outside_diameter: 1.750 INCHES NOMINAL IN, center_hole_diameter: 1.500 INCHES NOMINAL IN, cross-sectional_height: 0.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-617-0744, 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-0002948
NSN: 5331-01-617-0744
FSC: 5331 — O-ring
CAGE: 1NWY2 — INDEPENDENT ROUGH TERRAIN CENTER LLC (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE NITRILE
temp_rating-40.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
hardness_rating90.0 SHORE DUROMETER A NOMINAL
outside_diameter1.750 INCHES NOMINAL IN
center_hole_diameter1.500 INCHES NOMINAL IN
cross-sectional_height0.125 INCHES NOMINAL IN
end_item_identification3930-01-599-9978
NSN5331-01-617-0744
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: EP-0002948 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: -40.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.125 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.750 INCHES NOMINAL IN
•
HARDNESS RATING: 90.0 SHORE DUROMETER A NOMINAL
•
COLOR: BLACK
•
CENTER HOLE DIAMETER: 1.500 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE NITRILE
TECHNICAL CHARACTERISTICS
TEMP RATING-40.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
OUTSIDE DIAMETER1.750 INCHES NOMINAL IN
HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL
COLORBLACK
CENTER HOLE DIAMETER1.500 INCHES NOMINAL IN
END ITEM IDENTIFICATION3930-01-599-9978
MATERIALRUBBER BUTADIENE NITRILE
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is EP-0002948?
EP-0002948 is a O-RING.
What is the NSN for EP-0002948?
EP-0002948 is cataloged in the U.S. Government catalog under NSN 5331-01-617-0744. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.