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		                        | National Stock Number:
 4820-00-245-2125
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 002452125
 
 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:
 
 | 29-00122 | 81412 | TREADWELL CORPORATION (DELAWARE) |  | 29-00122CP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |  | 300973-1CP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |  | 300973-1CP | 81412 | TREADWELL CORPORATION (DELAWARE) |  | 300973-1 | 81412 | TREADWELL CORPORATION (DELAWARE) | 
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 Techincal Specification:
 
 | CRITICALITY CODE JUSTIFICATION | ZZZY |  | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D | 
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