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		                        | National Stock Number:
 4810-01-052-1877
 
 Federal Supply Class:
 4810
 
 National Item Identification Number:
 010521877
 
 Description:
 SEAT,VALVE
 
 Detail:
 A replaceable item designed to provide a circular stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see INSERT, ENGINE VALVE SEAT.
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 Manufacturer Information:
 
 | 3029-0014 | 04577 | MISSION SYSTEMS ORCHARD PARK INC |  | 3029-0014 | 1W506 | CARLETON TECHNOLOGIES INC DIV TAMPA FACILITY |  | 3029-0014CP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | 
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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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