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		                             National Stock Number: 4820-01-359-0987
  Federal Supply Class: 4820
  National Item Identification Number: 013590987
  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:
 | GV500MJ | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION |  | GV500MJ64N | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION |  | L63300-64N | 01178 | LOURDES INDUSTRIES, INC. |   
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  Techincal Specification:
 | MATERIAL | STEEL CORROSION RESISTING BODY |  | STYLE DESIGNATOR | STRAIGHT THRU |  | FLOW CONTROL DEVICE | DISK |  | VALVE OPERATION METHOD | AUTOMATIC |  | CONNECTION TYPE | THREADED INTERNAL TUBE ALL ENDS |  | CONNECTION STYLE | PLAIN, OPTIONAL END (PIPE) ALL ENDS |  | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 4.000 INCHES ALL ENDS |  | THREAD SERIES DESIGNATOR | UNF ALL ENDS |  | NOMINAL THREAD SIZE | 4.000 INCHES ALL ENDS |  | THREAD CLASS | 2A ALL ENDS |  | THREAD DIRECTION | RIGHT-HAND ALL ENDS |  | MOUNTING POSITION | HORIZONTAL |  | DISK LOADING METHOD | SPRING |   
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