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 OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU, temp_rating: -55.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, outside_diameter: 3.730 INCHES MINIMUM AND 3.794 INCHES MAXIMUM IN, center_hole_diameter: 3.469 INCHES MINIMUM AND 3.499 INCHES MAXIMUM IN, elongation_percentage: 260 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 5331-00-726-0797, 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
AS568B-238
NSN:5331-00-726-0797 FSC:5331 — O-RING CAGE:81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
material
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU
temp_rating
-55.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
hardness_rating
70.0 SHORE DUROMETER A NOMINAL
outside_diameter
3.730 INCHES MINIMUM AND 3.794 INCHES MAXIMUM IN
center_hole_diameter
3.469 INCHES MINIMUM AND 3.499 INCHES MAXIMUM IN
elongation_percentage
260 MAXIMUM
cross-sectional_height
0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN
5331-00-726-0797
COMPONENT DIAGRAM
KEY FEATURES
•
CENTER HOLE DIAMETER: 3.460 INCHES MINIMUM AND 3.508 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.125 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
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FREQUENTLY ASKED QUESTIONS
What is AS568B-238?
AS568B-238 is a O-RING.
What parts can replace AS568B-238?
There are 7 known substitutes for AS568B-238: AS568-238, 58094, D2000-05 2BG715E034EF11EF21F1 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS568B-238?
AS568B-238 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-726-0797. This indicates validated use in U.S. government and defense supply chains.
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