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: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, outside_diameter: 12.189 INCHES MINIMUM AND 12.335 INCHES MAXIMUM IN, center_hole_diameter: 11.919 INCHES MINIMUM AND 12.049 INCHES MAXIMUM IN, elongation_percentage: 331 MAXIMUM. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-476-7498, 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.
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FREQUENTLY ASKED QUESTIONS
What is 278-B46A?
278-B46A is a O-RING.
What parts can replace 278-B46A?
There are 21 known substitutes for 278-B46A: 179837, 2X33, S56-06 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 278-B46A?
278-B46A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-476-7498. This indicates validated use in U.S. government and defense supply chains.
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