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Technical Data Sheet
PartsTable / O-RING / MIL-R-83285GR80/AS568-227
MIL-R-83285GR80/AS568-227 ✓ 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 MIL-R-83285GR80/AS568-227 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-385-9503, 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
MIL-R-83285GR80/AS568-227
NSN: 5331-01-385-9503
FSC: 5331 — O-RING
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-R-83285GR80/AS568-227
NSN5331-01-385-9503
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MIL-R-83285GR80/AS568-227 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: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
TEMP RATING: -70.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
•
HARDNESS RATING: 80.0 SHORE DUROMETER A NOMINAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-83285 GR 80 MIL SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: RUBBER ETHYLENE-PROPYLENE CLASS EPM
•
CENTER HOLE DIAMETER: 2.091 INCHES MINIMUM AND 2.217 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
TEMP RATING-70.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
HARDNESS RATING80.0 SHORE DUROMETER A NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-83285 GR 80 MIL SPEC SINGLE MATERIAL RESPONSE
MATERIALRUBBER ETHYLENE-PROPYLENE CLASS EPM
CENTER HOLE DIAMETER2.091 INCHES MINIMUM AND 2.217 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
5R13-5Interchangeable
interchangeable cross-reference
interchangeable
AS568-227Interchangeable
interchangeable cross-reference
interchangeable
2-227 V764-90Interchangeable
interchangeable cross-reference
interchangeable
MIL-R-83248C TY2 CL2Interchangeable
interchangeable cross-reference
interchangeable
AMS-R-83285 GR 80Interchangeable
interchangeable cross-reference
interchangeable
216-4384970 PC 63Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-R-83285GR80/AS568-227?
MIL-R-83285GR80/AS568-227 is a MIL-R-83285GR80/AS568-227.
What parts can replace MIL-R-83285GR80/AS568-227?
There are 16 known substitutes for MIL-R-83285GR80/AS568-227: 5R13-5, AS568-227, 2-227 V764-90 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-R-83285GR80/AS568-227?
MIL-R-83285GR80/AS568-227 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-385-9503. 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.
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Last verified: July 2026