1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Para No. Revisions Rev 02 2012 04 12 N Status No usage or replacement N. Benipal, NA 1978 08 30 Metricated, Renumbered & Retyped PCR-RD-782440-P2 1964 02 20 Released P5-650 Page 1 of 1 GASKET, PAPER/BEATER MIX NITRILE BUTADI
2、ENE RUBBER ESW-M8G21-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE: The material defined by this specification is a beater mix nitrile butadiene rubber and paper gasket material of good quality and uniform composition. 2. APPLICATION: This specification was released originally for material used as an aut
3、omatic transmission gasket. 3. REQUIREMENTS: Unless otherwise specified, tests shall be conducted in accordance with ASTM F 104, Type 3. 3.1 COMPRESSIBILITY, min 6 % Recovery, min 50 % 3.2 TENSILE STRENGTH, min 4000 psi (27.6 MPa) 3.3 IMMERSION IN LIQUIDS No decomposition Immersion Fluid Test Condit
4、ions Thickness Change ASTM Oil No. 1 5 h at 149 C +/- 5 % ASTM Oil No. 3 70 h at 149 C 0 to + 10 % Approved ATF 5 h at 149 C +/- 5 % 3.4 SUPPLIERS RESPONSIBILITY Material supplied to this specification must be equivalent to that originally approved. Changes in formulation or processing shall not be
5、made without prior approval as described in Supplier Procedure I-A. 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.
