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Technical Data Sheet
PartsTable / O-RING / ARP568-253MILG2 2050
ARP568-253MILG2 2050 ✓ 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, hardness_rating: 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM, outside_diameter: 20.270 INCHES MINIMUM AND 20.480 INCHES MAXIMUM IN, center_hole_diameter: 19.910 INCHES MINIMUM AND 20.000 INCHES MAXIMUM IN, cross-sectional_height: 0.205 INCHES MINIMUM AND 0.215 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 5331-01-067-7057, 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
ARP568-253MILG2 2050
NSN: 5331-01-067-7057
FSC: 5331 — O-RING
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
hardness_rating60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM
outside_diameter20.270 INCHES MINIMUM AND 20.480 INCHES MAXIMUM IN
center_hole_diameter19.910 INCHES MINIMUM AND 20.000 INCHES MAXIMUM IN
cross-sectional_height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
NSN5331-01-067-7057
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ARP568-253MILG2 2050 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
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
OUTSIDE DIAMETER: 20.270 INCHES MINIMUM AND 20.480 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 19.910 INCHES MINIMUM AND 20.000 INCHES MAXIMUM IN
•
HARDNESS RATING: 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OUTSIDE DIAMETER20.270 INCHES MINIMUM AND 20.480 INCHES MAXIMUM IN
CENTER HOLE DIAMETER19.910 INCHES MINIMUM AND 20.000 INCHES MAXIMUM IN
HARDNESS RATING60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
298-68 47Interchangeable
interchangeable cross-reference
interchangeable
1750-705Interchangeable
interchangeable cross-reference
interchangeable
000444-1007Interchangeable
interchangeable cross-reference
interchangeable
2389Interchangeable
interchangeable cross-reference
interchangeable
1913954Interchangeable
interchangeable cross-reference
interchangeable
453318Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ARP568-253MILG2 2050?
ARP568-253MILG2 2050 is a O-RING.
What parts can replace ARP568-253MILG2 2050?
There are 23 known substitutes for ARP568-253MILG2 2050: 298-68 47, 1750-705, 000444-1007 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ARP568-253MILG2 2050?
ARP568-253MILG2 2050 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-067-7057. 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