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		                             National Stock Number: 4820-00-307-8102
  Federal Supply Class: 4820
  National Item Identification Number: 003078102
  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:
 | 2285-299PC4 | 43689 | HUNTINGTON INGALLS INC |   
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  Techincal Specification:
 | STYLE DESIGNATOR | PLAIN |  | OVERALL HEIGHT | 0.628 INCHES NOMINAL |  | BODY OUTSIDE DIAMETER | 7.000 INCHES NOMINAL |  | BODY STEPPED INSIDE DIAMETER | 5.860 INCHES NOMINAL FIRST STEP |   | 5.055 INCHES NOMINAL SECOND STEP |  | MATERIAL | PLASTIC ACETAL OVERALL |  | SEATING SURFACE SHAPE | RADIAL |  | SEAL ACCOMMODATION TYPE | GROOVED |   
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