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		                        | National Stock Number:
 4820-01-544-8536
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 015448536
 
 Description:
 DISK,VALVE
 
 Detail:
 An item of various shapes (usually circular, conical, cylindrical, or rectangular) used to prevent or regulate the flow of liquids or gases through the valve. May include a retainer, screw, holder, and the like.
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 Manufacturer Information:
 
 | 15221460 | 96169 | ELECTRIC BOAT CORPORATION |  | 15221460L1 | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |  | 512-6404649-40L1 | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |  | 512-6404651-36L1 | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |  | 512-6404649-40 | 53711 | NAVAL SEA SYSTEMS COMMAND |  | 512-6404651-36 | 53711 | NAVAL SEA SYSTEMS COMMAND | 
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 Techincal Specification:
 
 | CRITICALITY CODE JUSTIFICATION | ZZZY |  | PART NAME ASSIGNED BY CONTROLLING AGENCY | (DRAWING); DISC, BACK-UP, VALVE, AIR INDUCTION |  | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS | 
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