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		                        | National Stock Number:
 4820-01-567-7934
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 015677934
 
 Description:
 DIAPHRAGM,ACTUATOR VALVE,SPECIAL
 
 Detail:
 An item constructed of one or more layers of thin flexible material, either laminated or separated, designed to form a tight seal between the chambers of a valve, and to transmit pressure inducted motion to a valve disk either directly or through a mechanical linkage. The surface of the item must be formed or molded to have a beaded or rolled edge, ribs or any other raised surfaces. The item may contain bolt holes and/or center holes. Excludes DIAPHRA GM, VALVE, FLAT and GASKET.
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 Manufacturer Information:
 
 | 31M-19-1B | 21013 | METREX VALVE CORP. |  | MDFPM-3000-3W | 21013 | METREX VALVE CORP. |  | MDFPM-3000-3W ITEM 21 | 21013 | METREX VALVE CORP. | 
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 Techincal Specification:
 
 | MATERIAL | RUBBER SYNTHETIC |  | PART NAME ASSIGNED BY CONTROLLING AGENCY | DIAPHRAGM LOWER |  | MEDIA FOR WHICH DESIGNED | WATER |  | PRESSURE RATING | 285.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM |  | STYLE DESIGNATOR | SPECIAL SHAPED | 
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