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		                             National Stock Number: 4820-01-063-1816
  Federal Supply Class: 4820
  National Item Identification Number: 010631816
  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:
 | 64222 | 57574 | VELAN VALVE CORP. |  | 64222W3-234B2TS | 57574 | VELAN VALVE CORP. |  | W3-234B2TS64222 | 57574 | VELAN VALVE CORP. |   
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  Techincal Specification:
 | MATERIAL | STEEL OVERALL |  | STYLE DESIGNATOR | STRAIGHT THRU |  | FLOW CONTROL DEVICE | DISK |  | MEDIA FOR WHICH DESIGNED | WATER-OIL-GAS SINGLE RESPONSE |  | MAXIMUM OPERATING PRESSURE | 600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | VALVE OPERATION METHOD | AUTOMATIC |  | CONNECTION TYPE | THREADED INTERNAL PIPE 1ST END |   | UNTHREADED INTERNAL PIPE 2ND END |  | CONNECTION STYLE | PLAIN, OPTIONAL END (PIPE) 1ST END |   | SOCKET (PIPE) 2ND END |  | NOMINAL PIPE SIZE ACCOMMODATED | 0.500 INCHES 2ND END |  | THREAD SERIES DESIGNATOR | NPT 1ST END |  | NOMINAL THREAD SIZE | 0.500 INCHES 1ST END |  | THREAD DIRECTION | RIGHT-HAND 1ST END |  | MOUNTING POSITION | HORIZONTAL OR |   | VERTICAL |  | DISK LOADING METHOD | SPRING |  | SPECIAL FEATURES | PISTON CHECK VALVE TYPE; DISC ON PIECE CONSTRUCTION |   
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