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		                             National Stock Number: 4820-00-454-7757
  Federal Supply Class: 4820
  National Item Identification Number: 004547757
  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:
 | 6873RA | 86185 | MCCANNA INC DBA MARPAC INC |  | 6873YB | 86185 | MCCANNA INC DBA MARPAC INC |  | 68T3RA | 86185 | MCCANNA INC DBA MARPAC INC |   
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  Techincal Specification:
 | STYLE DESIGNATOR | PLAIN |  | OVERALL HEIGHT | 0.281 INCHES NOMINAL |  | BODY OUTSIDE DIAMETER | 2.012 INCHES NOMINAL |  | BODY INSIDE DIAMETER | 1.828 INCHES NOMINAL |  | MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL |  | SEATING SURFACE SHAPE | RADIAL |  | SEAT RADIUS | 1.000 INCHES NOMINAL |   
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