PartsTable
Technical Data Sheet
AS568-249 ✓ 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 ETHYLENE-PROPYLENE CLASS EPM, hardness_rating: 75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM, center_hole_diameter: 4.824 INCHES MINIMUM AND 4.894 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-012-5148, 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
AS568-249
NSN: 5331-01-012-5148
FSC: 5331 — O-RING
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialRUBBER ETHYLENE-PROPYLENE CLASS EPM
hardness_rating75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM
center_hole_diameter4.824 INCHES MINIMUM AND 4.894 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5331-01-012-5148
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS568-249 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
ELONGATION PERCENTAGE: 331 MAXIMUM
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OUTSIDE DIAMETER: 5.137 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT: 0.139 INCHES NOMINAL IN
TEMP RATING: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
CENTER HOLE DIAMETER: 4.859 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
ELONGATION PERCENTAGE331 MAXIMUM
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OUTSIDE DIAMETER5.137 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.139 INCHES NOMINAL IN
TEMP RATING-30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
CENTER HOLE DIAMETER4.859 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
50325Interchangeable
interchangeable cross-reference
interchangeable
495LXInterchangeable
interchangeable cross-reference
interchangeable
SM-B-148337Interchangeable
interchangeable cross-reference
interchangeable
7827WAInterchangeable
interchangeable cross-reference
interchangeable
6685PL0887626Interchangeable
interchangeable cross-reference
interchangeable
195810Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS568-249?
AS568-249 is a O-RING.
What parts can replace AS568-249?
There are 21 known substitutes for AS568-249: 50325, 495LX, SM-B-148337 and 18 more. Substitute compatibility should be verified for your specific system.
Is AS568-249 still available?
AS568-249 is currently cancelled.
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