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MIL-R-83485 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MIL-R-83485: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, hardness_rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM, special_features: WEAPONS SYSTEM ESSENTIAL, center_hole_diameter: 0.354 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN, criticality_code_justification: FEAT. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-211-7498, 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-83485
NSN: 5331-01-211-7498
NIINs: 012117498, 012187138, 012187139, 012830518, 013189115, 013221149, 013406963, 013498918, 013601900, 013601901, 013604764, 013651466, 013713751, 013975132, 013975134, 013982594, 013982627, 013995816, 014075787, 014090150, 014123637, 014123642, 014123841, 014123842, 014123937, 014124004, 014124066, 014124120, 014124122, 014124456, 014124457, 014124499, 014124827, 014124828, 014124831, 014124837, 014124839, 014150820, 014399955, 014600483, 014609035, 014609039
FSC: 5331 — O-ring
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
hardness_rating70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
special_featuresWEAPONS SYSTEM ESSENTIAL
center_hole_diameter0.354 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
criticality_code_justificationFEAT
material_document_and_classificationMIL-R-83485 TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5331-01-211-7498
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MIL-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
KEY FEATURES
•
TEMP RATING: -40.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.678 INCHES MINIMUM AND 0.704 INCHES MAXIMUM IN
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
•
CENTER HOLE DIAMETER: 0.544 INCHES MINIMUM AND 0.558 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
TECHNICAL CHARACTERISTICS
TEMP RATING-40.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.678 INCHES MINIMUM AND 0.704 INCHES MAXIMUM IN
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER0.544 INCHES MINIMUM AND 0.558 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROCARBON CLASS FPM
SUBSTITUTES & CROSS-REFERENCES 8
10444076Reference document
Same NSN cross-reference
Reference document — Informative reference only
V0835 2-015Reference document
Same NSN cross-reference
Reference document — Secondary reference
AMC-R-83485Reference document
Same NSN cross-reference
Reference document — Secondary reference
2-015 V0835-75Reference document
Same NSN cross-reference
Reference document — Secondary reference
M83485/1-015Reference document
Same NSN cross-reference
Reference document — Secondary reference
ST1946-015Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MIL-R-83485?
MIL-R-83485 is a O-RING.
What parts can replace MIL-R-83485?
There are 8 known substitutes for MIL-R-83485: 10444076, V0835 2-015, AMC-R-83485 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-R-83485?
MIL-R-83485 is cataloged in the U.S. Government catalog under NSN 5331-01-211-7498. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.