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Technical Data Sheet
PartsTable / O-RING / AS568-270 MIL-P-25732
AS568-270 MIL-P-25732 ✓ 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, outside_diameter: 9.204 INCHES MINIMUM AND 9.320 INCHES MAXIMUM IN, center_hole_diameter: 8.954 INCHES MINIMUM AND 9.014 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 5331-01-031-4430, 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
AS568-270 MIL-P-25732
NSN: 5331-01-031-4430
FSC: 5331 — O-RING
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
outside_diameter9.204 INCHES MINIMUM AND 9.320 INCHES MAXIMUM IN
center_hole_diameter8.954 INCHES MINIMUM AND 9.014 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5331-01-031-4430
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS568-270 MIL-P-25732 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
•
CENTER HOLE DIAMETER: 8.954 INCHES MINIMUM AND 9.014 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 9.204 INCHES MINIMUM AND 9.320 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER8.954 INCHES MINIMUM AND 9.014 INCHES MAXIMUM IN
OUTSIDE DIAMETER9.204 INCHES MINIMUM AND 9.320 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
32.540-1Interchangeable
interchangeable cross-reference
interchangeable
157004Interchangeable
interchangeable cross-reference
interchangeable
41125030Interchangeable
interchangeable cross-reference
interchangeable
11500PC11759Interchangeable
interchangeable cross-reference
interchangeable
33P1561-1715Interchangeable
interchangeable cross-reference
interchangeable
564-6709-931670ALTAPC26Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS568-270 MIL-P-25732?
AS568-270 MIL-P-25732 is a O-RING.
What parts can replace AS568-270 MIL-P-25732?
There are 19 known substitutes for AS568-270 MIL-P-25732: 32.540-1, 157004, 41125030 and 16 more. Substitute compatibility should be verified for your specific system.
Is AS568-270 MIL-P-25732 still available?
AS568-270 MIL-P-25732 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026