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Chemicals Environment AMS CE Elastomers Committee

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Standard

Elastomer: Acrylonitrile Butadiene Rubber (NBR) Hot Oil and Coolant Resistant, Low Swell 45 to 55 Type ‘A’ Durometer Hardness for Products in Engine Oil Systems/Coolant Systems
2020-05-05
CURRENT
AMS3226J
This specification covers an Acrylonitrile Butadiene Rubber (NBR) that can be used to manufacture product in the form of sheet, strip, tubing, extrusions, and molded shapes. For molded rings, compression seals, O-ring cord, and molded-in-place gaskets for aeronautical and aerospace applications, use the AMS7000 series specification.
Standard

Elastomer: Acrylonitrile Butadiene Rubber (NBR) Aromatic Fuel Resistant 55 to 65 Type ‘A’ Durometer Hardness For Products in: Aromatic and Aliphatic Fuel Systems
2020-04-28
CURRENT
AMS3212R
This specification covers an Acrylonitrile Butadiene Rubber (NBR) elastomer that can be used to manufacture product in the form of sheet, strip, tubing, extrusions, and molded shapes. For molded rings, compression seals, O-ring cord, and molded-in-place gaskets for aeronautical and aerospace applications, use the AMS7000 series specification.
Standard

Elastomer: Methyl/Methyl Vinyl Silicone, (MQ/MVQ) High Temperature/Gas Turbine Engine Oil/Phosphate Esther Hydraulic Fluid Resistant High Strength/High Tear/High Modulus 55 to 65 Type “A” Hardness For Products in High Temperature Environments/Gas Turbine Engine Oils
2019-11-26
CURRENT
AMS3306D
This specification covers a methyl or methyl vinyl silicone rubber material that can be used to manufacture product in the form of sheet, strip, tubing, extrusions, and molded shapes. This specification should not be used for molded rings, compression seals, O-ring cord, and molded in place gaskets for aeronautical and aerospace applications without complete consideration of the end use prior to the selection of this material.
Standard

Synthetic Rubber Hot Oil Resistant, High Swell 45 - 55
2019-07-29
CURRENT
AMS3222J
This specification covers a synthetic rubber in the form of sheet, strip, tubing, extrusions, and molded shapes. This specification should not be used for molded rings, compression seals, O-ring cords, and molded in place gaskets for aeronautical and aerospace applications without complete consideration of the end use prior to the selection this material.
Standard

Rubber: Flourocarbon (FKM), High Temperature/Fluid Resistant, Low Compression Set/ 85 to 95 Hardness, For Seals in Fuel Systems and Specific Engine Oil Systems
2018-10-09
WIP
AMS7259F
This specification covers a fluorocarbon (FKM) rubber in the form of O-rings, O-ring cord, compression seals, and molded-in-place gaskets for aeronautical and aerospace applications. These products have been used typically as sealing rings, compression seals, O-ring cord, and molded-in-place gaskets in contact with air and a wide variety of fuels, lubricants, and specific hydraulic fluids but usage is not limited to such applications. Each application should be considered individually. This class of fluoroelastomers is not recommended for use in high temperature stabilized, “HTS”, engine oils. Each “HTS” oil should be evaluated separately. This fluorocarbon rubber has a typical service temperature range of -20 to +400 °F (-29 to +204 °C) in air.
Standard

Designing for Long Life with Elastomers
2018-01-04
HISTORICAL
AIR1412D
This document lists those guidelines recognized as being essential for consideration by the designer who is preparing to select an elastomer as part of an aerospace design.
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