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Fluorocarbon Elastomer (FKM) High Temperature / HTS Oil Resistant / Fuel Resistant Low Compression Set / 70 to 80 Hardness, Low Temperature Tg -22 °F (-30 °C) For Seals in Oil / Fuel / Specific Hydraulic Systems
- Aerospace Material Specification
Published August 29, 2012 by SAE International in United States
Downloadable datasets availableAnnotation ability available
This specification covers a high temperature, compression set and fluid resistant fluorocarbon (FKM) elastomer in the form, of O-rings, compression seals, O-ring cord, and molded-in-place gaskets for aeronautical and aerospace applications.
AMS-R-83485 is being superseded by two specifications: AMS7287 replaces AMS-R-83485 (Type I parts) for compression seals and an AMS3000-series specification will replace AMS-R-83485 (Type II parts) for moulded shapes. A new part standard has been produced (AS83485) that will supersede AMS-R-83485/1, although the M83485-XXX numbering system will be retained. The technical requirements of AMS-R-83485 have been maintained in this document, with the addition of a long-term compression set requirement, replacement of STD / SPC class gas turbine lubricants with AMS3085 (i.e. BP Reference Oil 300, representative of HTS class gas turbine lubricants), and the addition of a glass transition (Tg) value/requirement.
Data Sets - Support Documents
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Welcome to the AMS-CE Elastomers Committee Discussion Forum.The AMS-CE Elastomers Committee maintains Aerospace Materials Specifications (AMS), Aerospace Recommended Practices (ARP), Aerospace Information Reports (AIR) and Aerospace Standards (AS) on elastomeric materials. AMS-CE, which reports to the Aerospace Materials Division, coordinates and maintains liaison with industry, government and other standardization groups on elastomeric materials. A significant part of this committee is concerned with elastomeric fluid sealing materials, their applications, material development, testing, quality, design parameters and design practices. No copyrighted material may be posted in this forum. SAE is not liable for opinions expressed or information posted to this forum. All information posted becomes the property of SAE.
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