1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Para No. Revisions Rev 01 2012 05 07 N Status No usage or replacement N. Benipal, NA 1981 10 12 Released PCR WR 866603-P Page 1 of 2 GASKET, CELLULOSE FIBER/STYRENE-BUTADIENE RUBBER - ESP-M8G162-A ENCAPSULATED NOT TO BE USED
2、 FOR NEW DESIGN 1. SCOPE: The material defined by this specification is a gasket composed of styrene-butadiene rubber and cellulose fiber, encapsulated with a conformable neoprene membrane. 2. APPLICATION: This specification was released originally for material used as a gasket for automatic transmi
3、ssion extension housings. 3. REQUIREMENTS: All tests shall be conducted in accordance with ASTM F 104, Type 3. Note: All aging tests are to be conducted on fully encapsulated samples. Material shall not be cut, exposing un-encapsulated edges. 3.1 COMPRESSIBILITY 25 - 45% (ASTM F 36, 6.9 MPa load) Re
4、covery 40% 3.2 TENSILE STRENGTH, min 6.9 MPa (ASTM D 412, AMD) 3.3 DENSITY, min 704 kg/m3 3.4 IMMERSION IN LIQUIDS (ASTM D 471) Thickness Volume Immersion Fluid Test Conditions Change Change ASTM #1 Oil 70 h at 150 C +/- 5% 0 to -5% ASTM #3 Oil 70 h at 150 C +30% max +35% max Currently Approved 70 h
5、 at 150 C +20% max +20% max Automatic Trans- mission Fluid 3.5 SUPPLIERS RESPONSIBILITY Material supplied to this specification must be equivalent to that originally approved. Changes in formulation or processing shall not be made without prior approval as described in Supplier Procedure I-A. ENGINE
6、ERING MATERIAL SPECIFICATION ESP-M8G162-A Page 2 of 2 4. APPROVAL OF SUPPLIERS: Suppliers to this specification must be approved by the affected product engineering office. Procedure for gaining approval of a specific material to a new/existing ES-M specification is contained in Supplier Procedure I-A. Approved new suppliers will be added to the Engineering Materials Approved Source List.
