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		                             National Stock Number: 4820-00-053-1975
  Federal Supply Class: 4820
  National Item Identification Number: 000531975
  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:
 | 2620-927X2ASSY6DA | 11836 | NATIONAL OILWELL |  | 2620-927X2ASSY6DA | 96169 | ELECTRIC BOAT CORPORATION |  | 2620-927X2ASSY6DAL1 | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |  | SS845-2110236ASSY6DAL1 | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |  | SS845-2110236ASSY6DA | 80064 | NAVAL SHIP SYSTEMS COMMAND |   
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  Techincal Specification:
 | CRITICALITY CODE JUSTIFICATION | ZZZY |  | FACE TO FACE DISTANCE | 6.000 INCHES |  | FLOW CONTROL DEVICE | DISK |  | MOUNTING POSITION | HORIZONTAL |  | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |  | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS |  | VALVE OPERATION METHOD | AUTOMATIC |  | VALVE SIZE | 1.000 INCHES |   
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