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Technical Data Sheet

M83485/1-345 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

M83485/1-345: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL, center_hole_diameter: 3.947 INCHES MINIMUM AND 4.003 INCHES MAXIMUM IN, cross-sectional_height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN, specification/standard_data: 81349-MIL-R-83485(USAF) 8SE+76 /CANCELLED/ GOVERNMENT SPECIFICATION, material_document_and_classification: SAE AMS-R-83485 ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-498-8922, 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
M83485/1-345
NSN: 5331-01-498-8922
NIINs: 014988922, 015095453
FSC: 5331 — O-ring
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
hardness_rating75.0 SHORE DUROMETER A NOMINAL
center_hole_diameter3.947 INCHES MINIMUM AND 4.003 INCHES MAXIMUM IN
cross-sectional_height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
specification/standard_data81349-MIL-R-83485(USAF) 8SE+76 /CANCELLED/ GOVERNMENT SPECIFICATION
material_document_and_classificationSAE AMS-R-83485 ASSN STD SINGLE MATERIAL RESPONSE
NSN5331-01-498-8922
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M83485/1-345 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: 0.210 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-83485,TYPE-1 MIL SPEC SINGLE MATERIAL RESPONSE
•
CENTER HOLE DIAMETER: 3.975 INCHES NOMINAL IN
•
MATERIAL: RUBBER ETHYLENE-PROPYLENE CLASS EPM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.210 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-83485,TYPE-1 MIL SPEC SINGLE MATERIAL RESPONSE
CENTER HOLE DIAMETER3.975 INCHES NOMINAL IN
MATERIALRUBBER ETHYLENE-PROPYLENE CLASS EPM
SUBSTITUTES & CROSS-REFERENCES 2
M83485-345Reference document
Same NSN cross-reference
Reference document — Secondary reference
H643-6503-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is M83485/1-345?
M83485/1-345 is a O-RING.
What parts can replace M83485/1-345?
There are 2 known substitutes for M83485/1-345: M83485-345, H643-6503-1. Substitute compatibility should be verified for your specific system.
What is the NSN for M83485/1-345?
M83485/1-345 is cataloged in the U.S. Government catalog under NSN 5331-01-498-8922. This indicates validated use in U.S. government and defense supply chains.
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