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Technical Data Sheet
PartsTable / O-RING / AS568-2-342
AS568-2-342 ✓ 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: -55.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF, hardness_rating: 50.0 SHORE DUROMETER A NOMINAL, outside_diameter: 4.107 INCHES MINIMUM AND 4.183 INCHES MAXIMUM IN, center_hole_diameter: 3.697 INCHES MINIMUM AND 3.753 INCHES MAXIMUM IN, elongation_percentage: 582 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 5331-01-079-8154, 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
AS568-2-342
NSN: 5331-01-079-8154
FSC: 5331 — O-RING
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating-55.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
hardness_rating50.0 SHORE DUROMETER A NOMINAL
outside_diameter4.107 INCHES MINIMUM AND 4.183 INCHES MAXIMUM IN
center_hole_diameter3.697 INCHES MINIMUM AND 3.753 INCHES MAXIMUM IN
elongation_percentage582 MAXIMUM
cross-sectional_height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
NSN5331-01-079-8154
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS568-2-342 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: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
•
ELONGATION PERCENTAGE: 582 MAXIMUM
•
TEMP RATING: -55.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
OUTSIDE DIAMETER: 4.107 INCHES MINIMUM AND 4.183 INCHES MAXIMUM IN
•
HARDNESS RATING: 50.0 SHORE DUROMETER A NOMINAL
•
CENTER HOLE DIAMETER: 3.697 INCHES MINIMUM AND 3.753 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
ELONGATION PERCENTAGE582 MAXIMUM
TEMP RATING-55.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OUTSIDE DIAMETER4.107 INCHES MINIMUM AND 4.183 INCHES MAXIMUM IN
HARDNESS RATING50.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER3.697 INCHES MINIMUM AND 3.753 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
2-003 C1124-70Interchangeable
interchangeable cross-reference
interchangeable
2-003 N674-7Interchangeable
interchangeable cross-reference
interchangeable
AS568-006MILG23652TY2Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS568Interchangeable
interchangeable cross-reference
interchangeable
4400596-0060Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-22050Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS568-2-342?
AS568-2-342 is a O-RING.
What parts can replace AS568-2-342?
There are 27 known substitutes for AS568-2-342: 2-003 C1124-70, 2-003 N674-7, AS568-006MILG23652TY2 and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS568-2-342?
AS568-2-342 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-079-8154. 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