PartsTable
Technical Data Sheet
12490-25 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, temp_rating: -70.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, center_hole_diameter: 1.353 INCHES MINIMUM AND 1.365 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-265-1077, 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
12490-25
NSN: 5331-00-265-1077
FSC: 5331 — O-RING
CAGE: 11599 — TRIUMPH ENGINE CONTROL SYSTEMS LLC (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating-70.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF
hardness_rating70.0 SHORE DUROMETER A NOMINAL
center_hole_diameter1.353 INCHES MINIMUM AND 1.365 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5331-00-265-1077
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12490-25 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
CENTER HOLE DIAMETER: 1.353 INCHES MINIMUM AND 1.365 INCHES MAXIMUM IN
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TEMP RATING: -70.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONW/S: CVN 68 CLASS REACTOR FILL AUXILIARY SYSTEM; TRUCK, FIRE/CRASH P2; SUBMARINE AUXILLARY AND MISCELLANEOUS SYSTEMS; FIRE PUMPS; AIRCRAFT, (AC-130H, MC-130H, EC-130E, HC-130); LOS ANGELES CLASS SSN (688); TICONDEROGA CLASS CG (47); TRIDENT HULL STRUCTURE; SPRUANCE CLASS DD (963); MAIN FEED PUMPS
CENTER HOLE DIAMETER1.353 INCHES MINIMUM AND 1.365 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TEMP RATING-70.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
10009661Interchangeable
interchangeable cross-reference
interchangeable
175981Interchangeable
interchangeable cross-reference
interchangeable
378300Interchangeable
interchangeable cross-reference
interchangeable
MS29513-220Interchangeable
interchangeable cross-reference
interchangeable
P500CBM0T0300-21NDIAL1-4INNPTInterchangeable
interchangeable cross-reference
interchangeable
851SA362Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12490-25?
12490-25 is a O-RING.
What parts can replace 12490-25?
There are 27 known substitutes for 12490-25: 10009661, 175981, 378300 and 24 more. Substitute compatibility should be verified for your specific system.
Is 12490-25 still available?
12490-25 is currently cancelled.
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