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		                        | National Stock Number:
 4820-00-908-9473
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 009089473
 
 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:
 
 | 0021840001001 | 16626 | CIRCOR INTL INC |  | 0021840001001 | 35795 | LESLIE CONTROLS, INC. |  | 218-40-02 | 16626 | CIRCOR INTL INC |  | 298-30-10PC8-3IN | 96169 | ELECTRIC BOAT CORPORATION | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | PLAIN FLANGED |  | FLANGE DIAMETER | 5.302 INCHES MINIMUM AND |  |  | 5.307 INCHES MAXIMUM |  | BODY OUTSIDE DIAMETER | 5.052 INCHES MINIMUM AND |  |  | 5.057 INCHES MAXIMUM |  | BODY INSIDE DIAMETER | 3.000 INCHES NOMINAL |  | FLANGE SEAT TO DISK END HEIGHT | 0.165 INCHES NOMINAL |  | UNDER FLANGE HEIGHT | 0.465 INCHES MINIMUM AND |  |  | 0.468 INCHES MAXIMUM |  | MATERIAL | PLASTIC,TETRAFLUROETHYLENE OVERALL |  | SEATING SURFACE SHAPE | ANGULAR |  | SEAT ANGLE IN DEG | 25.000 MINIMUM AND |  |  | 35.000 MAXIMUM | 
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