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Technical Data Sheet
PartsTable / O-RING / AS568B-12
AS568B-12 ✓ 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 FLUOROCARBON CLASS FPM, temp_rating: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL, outside_diameter: 0.493 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN, center_hole_diameter: 0.357 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN, cross-sectional_height: 0.066 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-957-1380, 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-12
NSN: 5331-00-957-1380
FSC: 5331 — O-RING
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
temp_rating-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
hardness_rating75.0 SHORE DUROMETER A NOMINAL
outside_diameter0.493 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
center_hole_diameter0.357 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN
cross-sectional_height0.066 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
NSN5331-00-957-1380
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS568B-12 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
•
OUTSIDE DIAMETER: 0.493 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
•
TEMP RATING: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
•
CENTER HOLE DIAMETER: 0.357 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.066 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.493 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROCARBON CLASS FPM
TEMP RATING-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
CENTER HOLE DIAMETER0.357 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.066 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
AS3085-012Interchangeable
interchangeable cross-reference
interchangeable
M83248/1-012Interchangeable
interchangeable cross-reference
interchangeable
9469127712Interchangeable
interchangeable cross-reference
interchangeable
ARP568-012SR288-75Interchangeable
interchangeable cross-reference
interchangeable
012-19258Interchangeable
interchangeable cross-reference
interchangeable
2-012 V747-75Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS568B-12?
AS568B-12 is a O-RING.
What parts can replace AS568B-12?
There are 22 known substitutes for AS568B-12: AS3085-012, M83248/1-012, 9469127712 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS568B-12?
AS568B-12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-957-1380. 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