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Technical Data Sheet
PartsTable / O-RING / M83485/1-920
M83485/1-920 ✓ 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 M83485/1-920 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 5331-01-460-0483, 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
M83485/1-920
NSN: 5331-01-460-0483
FSC: 5331 — O-RING
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM83485/1-920
NSN5331-01-460-0483
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M83485/1-920 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: 1.461 INCHES MINIMUM AND 1.489 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-83485 TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE
•
HARDNESS RATING: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
•
CROSS-SECTIONAL HEIGHT: 0.114 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER1.461 INCHES MINIMUM AND 1.489 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-83485 TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE
HARDNESS RATING70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
MATERIALRUBBER FLUOROCARBON CLASS FPM
CROSS-SECTIONAL HEIGHT0.114 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
M83485/1-029Interchangeable
interchangeable cross-reference
interchangeable
AMS-R-83485Interchangeable
interchangeable cross-reference
interchangeable
5331012727464Interchangeable
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
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M83485/1-920?
M83485/1-920 is a M83485/1-920.
What parts can replace M83485/1-920?
There are 21 known substitutes for M83485/1-920: M83485/1-029, AMS-R-83485, 5331012727464 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M83485/1-920?
M83485/1-920 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-460-0483. 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