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AS568B-20 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

AS568B-20: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR, temp_rating: -40.0 FAHRENHEIT AND 212.0 FAHRENHEIT DEGF, center_hole_diameter: 0.858 INCHES MINIMUM AND 0.870 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-239-4922, 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-20
NSN: 5331-00-239-4922
FSC: 5331 — O-ring
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR
temp_rating-40.0 FAHRENHEIT AND 212.0 FAHRENHEIT DEGF
center_hole_diameter0.858 INCHES MINIMUM AND 0.870 INCHES MAXIMUM IN
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN5331-00-239-4922
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS568B-20 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 212.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.858 INCHES MINIMUM AND 0.870 INCHES MAXIMUM IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR
TECHNICAL CHARACTERISTICS
TEMP RATING-40.0 FAHRENHEIT AND 212.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.858 INCHES MINIMUM AND 0.870 INCHES MAXIMUM IN
MATERIALRUBBER CHLOROPRENE CLASS CR
SUBSTITUTES & CROSS-REFERENCES 3
AMS3209-020ESReference document
Same NSN cross-reference
Reference document — Secondary reference
13211E8394-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
R63870C11E8394-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AS568B-20?
AS568B-20 is a O-RING.
What parts can replace AS568B-20?
There are 3 known substitutes for AS568B-20: AMS3209-020ES, 13211E8394-1, R63870C11E8394-1. Substitute compatibility should be verified for your specific system.
What is the NSN for AS568B-20?
AS568B-20 is cataloged in the U.S. Government catalog under NSN 5331-00-239-4922. This indicates validated use in U.S. government and defense supply chains.
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