AS3209-012 is a high-performance fluorocarbon (FKM) O-ring for fluid-resistant sealing in high-temperature aerospace environments. Made from AMS7276 rubber, it offers low compression set and superior degradation resistance compared to nitrile seals.
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Overview
This precision-engineered O-ring meets Aerospace Standard AS3209 and is fabricated from 75-durometer FKM elastomer. Sized for static axial sealing of -6 size straight thread tube fittings, it provides a leak-proof barrier against petroleum oils, synthetic lubricants, and jet fuels, ensuring airworthiness across commercial and military aircraft.
Features & Benefits
High-temperature FKM material rated up to 400°F continuous service
Sized for static axial sealing of -6 size straight thread tube fittings
Excellent fluid resistance to synthetic oils and jet fuels
75 Shore A hardness balances sealing force and deformation resistance
Complies fully with Aerospace Standard AS3209 for interchangeability
Typical brown color allows quick visual identification to prevent installation errors
Specifications
Material: Fluorocarbon Elastomer (FKM / Viton®)
Hardness: 75 ± 5 Shore A Durometer
Inside Diameter: 0.364 inches
Outside Diameter (Nominal): 0.500 inches
Cross-Section Diameter: 0.070 inches
Temperature Range: -15.0°F to 400.0°F (-26°C to 204°C)
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