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Technical Data Sheet
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AMS-R-83485 — Technical Data Sheet

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— · 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 FLUOROCARBON CLASS FPM, temp_rating: -40.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF, hardness_rating: 80.0 SHORE DUROMETER A NOMINAL, center_hole_diameter: 6.444 INCHES MINIMUM AND 6.524 INCHES MAXIMUM IN, cross-sectional_height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN, specification/standard_data: 81349-MIL-R-83485 AMENDMENT 3,NOTICE 2/INACTIVE/ GOVERNMENT SPECIFICATION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-272-7464, 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
AMS-R-83485
NSN: 5331-01-272-7464
FSC: 5331 — O-RING
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
temp_rating-40.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
hardness_rating80.0 SHORE DUROMETER A NOMINAL
center_hole_diameter6.444 INCHES MINIMUM AND 6.524 INCHES MAXIMUM IN
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
specification/standard_data81349-MIL-R-83485 AMENDMENT 3,NOTICE 2/INACTIVE/ GOVERNMENT SPECIFICATION
material_document_and_classificationAMS-R-83485 ASSN STD SINGLE MATERIAL RESPONSE
NSN5331-01-272-7464
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AMS-R-83485 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
M83248/1-029Interchangeable
interchangeable cross-reference
interchangeable
122-1096415 PIECE 50Interchangeable
interchangeable cross-reference
interchangeable
M83485/1-016Interchangeable
interchangeable cross-reference
interchangeable
V0835 2-016Interchangeable
interchangeable cross-reference
interchangeable
AMS-R-83485/1Interchangeable
interchangeable cross-reference
interchangeable
2-117V835-75Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AMS-R-83485?
AMS-R-83485 is a O-RING.
What parts can replace AMS-R-83485?
There are 29 known substitutes for AMS-R-83485: M83248/1-029, 122-1096415 PIECE 50, M83485/1-016 and 26 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AMS-R-83485?
AMS-R-83485 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-272-7464. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: September 2026