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AS568B-904 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

AS568B-904: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROSILICONE CLASS FQ, outside_diameter: 0.495 INCHES NOMINAL IN, center_hole_diameter: 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN, cross-sectional_height: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-202-0807, 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-904
NSN: 5331-00-202-0807
NIINs: 002020807, 012086753
FSC: 5331 — O-ring
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER FLUOROSILICONE CLASS FQ
outside_diameter0.495 INCHES NOMINAL IN
center_hole_diameter0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
cross-sectional_height0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
NSN5331-00-202-0807
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS568B-904 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
•
CROSS-SECTIONAL HEIGHT: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.495 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROSILICONE CLASS FQ
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.495 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROSILICONE CLASS FQ
SUBSTITUTES & CROSS-REFERENCES 4
AS568-904 2FK608A19EA36F19Z1Reference document
Same NSN cross-reference
Reference document — Secondary reference
3-904L449-65Reference document
Same NSN cross-reference
Reference document — Secondary reference
956235-904CReference document
Same NSN cross-reference
Reference document — Secondary reference
10163220Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AS568B-904?
AS568B-904 is a O-RING.
What parts can replace AS568B-904?
There are 4 known substitutes for AS568B-904: AS568-904 2FK608A19EA36F19Z1, 3-904L449-65, 956235-904C and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS568B-904?
AS568B-904 is cataloged in the U.S. Government catalog under NSN 5331-00-202-0807. This indicates validated use in U.S. government and defense supply chains.
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