1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Para No. Revisions Rev 03 2012 04 12 N Status No usage or replacement N. Benipal, NA 1982 09 10 3.1, 3.4, 3.5 Revised per R3.00-9832 CE3M-RD740100-55 1963 08 16 Released E7-2774 Page 1 of 2 GASKET, CELLULOSE FIBER/CORK-NITRI
2、LE RUBBER IMPREGNATED ESE-M8G23-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE: The material defined by this specification is a gasket composed of cellulose fibers, ground cork, and nitrile rubber. 2. APPLICATION: This specification was released originally for material used as a gasket on industrial engin
3、e fuel pumps. 3. REQUIREMENTS: All tests shall be conducted in accordance with ASTM F 104, Type 3 material, unless otherwise specified. 3.1 COMPRESSIBILITY 30 - 50 % (ASTM F 36, 1000 psi (6.9 MPa) load) Recovery, min 25 % 3.2 COMPRESSION SET, max 40 % (ASTM D 395, Method “A“, 22 h at 70 +/- 1 C, 400
4、 psi (2.8 MPa) load) 3.3 TENSILE STRENGTH, min WMD 800 psi (5.5 MPa) AMD 800 psi (5.5 MPa) 3.4 DENSITY, min 35 lb/ft3 (560 kg/m3) 3.5 IMMERSION IN LIQUIDS (22 h at 23 +/- 2 C) Thickness Weight Immersion Fluid Change, max Change, max ASTM Reference Fuel “B“ + 25 + 80 ASTM Oil #3 + 15 + 80 Distilled W
5、ater + 40 + 60 3.6 TEST SPECIMENS When standard test specimens cannot be obtained from parts, sheet stock will be supplied with each shipment for laboratory test purposes. ENGINEERING MATERIAL SPECIFICATION ESE-M8G23-A Page 2 of 2 3.7 SUPPLIERS RESPONSIBILITY Material supplied to this specification
6、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. 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.
