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Technical Data Sheet
PartsTable / O-RING / AS568-395
AS568-395 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
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: 26.230 INCHES MINIMUM AND 26.490 INCHES MAXIMUM IN, center_hole_diameter: 25.820 INCHES MINIMUM AND 26.060 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 5331-01-188-7634, 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
AS568-395
NSN: 5331-01-188-7634
FSC: 5331 — O-RING
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating-30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
hardness_rating70.0 SHORE DUROMETER A NOMINAL
outside_diameter26.230 INCHES MINIMUM AND 26.490 INCHES MAXIMUM IN
center_hole_diameter25.820 INCHES MINIMUM AND 26.060 INCHES MAXIMUM IN
elongation_percentage331 MAXIMUM
cross-sectional_height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
NSN5331-01-188-7634
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS568-395 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
GR M3CH714A25B34EO16EO36Interchangeable
interchangeable cross-reference
interchangeable
AS568-395Interchangeable
interchangeable cross-reference
interchangeable
2-395 C147-7Interchangeable
Same NIIN cross-reference
interchangeable
4592621 ITEM 14Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS568-395?
AS568-395 is a O-RING.
What parts can replace AS568-395?
There are 4 known substitutes for AS568-395: GR M3CH714A25B34EO16EO36, AS568-395, 2-395 C147-7 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS568-395?
AS568-395 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-188-7634. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026