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, 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 product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-211-7498, 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 FSC:5331 — O-RING CAGE:81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
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
material_document_and_classification
MIL-R-83485 TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE
NSN
5331-01-211-7498
COMPONENT DIAGRAM
KEY FEATURES
•
OUTSIDE DIAMETER: 0.678 INCHES MINIMUM AND 0.704 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
•
TEMP RATING: -40.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
•
CENTER HOLE DIAMETER: 0.544 INCHES MINIMUM AND 0.558 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
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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: M83485/1-015, ST1946-015, 10444076 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 Federal Logistics Information System (FLIS) under NSN 5331-01-211-7498. This indicates validated use in U.S. government and defense supply chains.
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