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		                        | National Stock Number:
 4820-00-489-9541
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 004899541
 
 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:
 
 | 65652-11219-101 | 78286 | SIKORSKY AIRCRAFT CORPORATION | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | PLAIN FLANGED |  | MATERIAL | STEEL BODY |  | SURFACE TREATMENT | PASSIVATE BODY |  | SEATING SURFACE SHAPE | FLAT |  | SEAL ACCOMMODATION TYPE | SLEEVE |  | THE MANUFACTURERS DATA |  |  | MANUFACTURERS CODE | 78286 |  | DESIGN CONTROL REFERENCE | 65652-11219-101 | 
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