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		                        | National Stock Number:
 4820-00-761-9030
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 007619030
 
 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:
 
 | 101B209DR1 | 03502 | GENERAL ELECTRIC CO NAVAL AND DRIVE TURBINE SYSTEMS DEPT |  | 101B209DRPC1 | 03502 | GENERAL ELECTRIC CO NAVAL AND DRIVE TURBINE SYSTEMS DEPT | 
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 Techincal Specification:
 
 | BODY INSIDE DIAMETER | 0.643 INCHES MINIMUM AND 0.647 INCHES MAXIMUM |  | BODY OUTSIDE DIAMETER | 1.838 INCHES MINIMUM AND 1.848 INCHES MAXIMUM |  | FLANGE DIAMETER | 2.375 INCHES NOMINAL |  | FLANGE SEAT TO DISK END HEIGHT | 0.248 INCHES MINIMUM AND 0.252 INCHES MAXIMUM |  | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FACE |  | MATERIAL | COBALT ALLOY FACE |  | MATERIAL | STEEL BODY |  | SEAT RADIUS | 0.147 INCHES MINIMUM AND 0.153 INCHES MAXIMUM |  | SEATING SURFACE SHAPE | RADIAL |  | STYLE DESIGNATOR | PLAIN FLANGED |  | UNDER FLANGE HEIGHT | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM | 
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