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, hardness_rating: 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM, outside_diameter: 20.270 INCHES MINIMUM AND 20.480 INCHES MAXIMUM IN, center_hole_diameter: 19.910 INCHES MINIMUM AND 20.000 INCHES MAXIMUM IN, cross-sectional_height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System under NSN 5331-01-067-7057, 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 RT253-65-389?
RT253-65-389 is a O-RING.
What parts can replace RT253-65-389?
There are 28 known substitutes for RT253-65-389: 298-68 47, 1750-705, 000444-1007 and 25 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RT253-65-389?
RT253-65-389 is cataloged in the Federal Logistics Information System under NSN 5331-01-067-7057. This indicates validated use in U.S. government and defense supply chains.
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