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		                             National Stock Number: 4820-00-835-4847
  Federal Supply Class: 4820
  National Item Identification Number: 008354847
  Description: VALVE,CHECK
  Detail: A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design. 
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  Manufacturer Information:
 | R2A7558 | 27188 | MARMON-HERRINGTON COMPANY |  | R2A7558 | 38460 | LONG-AIRDOX CO |   
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  Techincal Specification:
 | MATERIAL | STEEL CORROSION RESISTING OVERALL |  | SURFACE TREATMENT | PASSIVATE |  | STYLE DESIGNATOR | STRAIGHT THRU |  | FLOW CONTROL DEVICE | DISK |  | MEDIA FOR WHICH DESIGNED | STEAM SINGLE RESPONSE |  | MAXIMUM OPERATING PRESSURE | 300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | MAXIMUM OPERATING TEMP | 500.0 DEG FAHRENHEIT SINGLE RESPONSE |  | VALVE OPERATION METHOD | AUTOMATIC |  | CONNECTION TYPE | THREADED INTERNAL PIPE 1ST END |   | THREADED EXTERNAL PIPE 2ND END |  | CONNECTION STYLE | PLAIN, OPTIONAL END (PIPE) 1ST END |   | PLAIN (PIPE) 2ND END |  | NOMINAL PIPE SIZE ACCOMMODATED | 0.750 INCHES 1ST END |   | 1.500 INCHES 2ND END |  | THREAD SERIES DESIGNATOR | NPT 1ST END |   | NPT 2ND END |  | NOMINAL THREAD SIZE | 0.750 INCHES 1ST END |   | 1.500 INCHES 2ND END |  | THREAD QUANTITY PER INCH | 11-1/2 2ND END |  | THREAD DIRECTION | RIGHT-HAND 1ST END |   | RIGHT-HAND 2ND END |  | MOUNTING POSITION | HORIZONTAL OR |   | VERTICAL |  | DISK LOADING METHOD | SPRING |  | THE MANUFACTURERS DATA |  |  | MANUFACTURERS CODE | 27188 |  | DESIGN CONTROL REFERENCE | R2A7558 |   
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