SAE AMS 7276G:2001 pdf download

SAE AMS 7276G:2001 pdf download Rings, Sealing, Fluorocarbon (FKM) Rubber High-Temperature-Fluid Resistant Low Compression Set 70 to 80
1 . SCOPE:
1 .1 Form:
This specification covers a fluorocarbon (FKM) rubber in the form of O-rings, compression seals, O-ring cord, and molded-in-place gaskets.
1 .2 Application:
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 from -29 to +204 °C (-20 to +400 °F), 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.
1 .3 Safety – Hazardous Materials:
While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.
2. APPLICABLE DOCUMENTS:
The issue of the following documents in effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified. When the referenced document has been canceled and no superseding document has been specified, the last published issue of that document shall apply.
2.1 SAE Publications:
Available from SAE, 400 Commonwealth Drive, Warrendale, PA 1 5096-0001 .
AMS 281 7 Packaging and Identification, Preformed Packings
AMS 3023 Fluid, Reference for Testing Polyol Ester (and Diester) Resistant Material
AS568 Aerospace Size Standard for O-Rings
AS871 Manufacturing and Inspection Standard for Preformed Packings (O-Rings)
AIR851 O-Ring Tension Testing Calculations
PD 2000 Procedures for an Industry Qualified Product Management Process
2.2 ASTM Publications:
Available from ASTM, 1 00 Barr Harbor Drive, West Conshohocken, PA 1 9428-2959.
ASTM D 297 Rubber Products – Chemical Analysis
ASTM D 395 Rubber Property – Compression Set
ASTM D 41 2 Vulcanized Rubber and Thermoplastic Rubbers and Thermoplastic Elastomers – Tension
ASTM D 471 Rubber Property – Effect of Liquids
ASTM D 573 Rubber – Deterioration in an Air Oven
ASTM D 1 329 Rubber Property – Retraction at Lower Temperatures (TR Test)
ASTM D 1 41 4 Rubber O-Rings
ASTM D 2240 Rubber Property – Durometer Hardness
3. TECHNICAL REQUIREMENTS:
3.1 Material:
Shall be a compound, based on a fluorocarbon (FKM) elastomer, suitably cured to sealing rings, compression seals and moded-in-place gaskets meeting the requirements of 3.2 and 3.3. A dihydroxy/bisphenol cure system shall be used. Material shall be based on 1 00% virgin fluorocarbon (FKM) elastomer. No reprocessed or non-fluorocarbon polymer is acceptable.