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		                             National Stock Number: 4820-00-978-2320
  Federal Supply Class: 4820
  National Item Identification Number: 009782320
  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:
 | 8X0017-2 | 0SC87 | HLC INDUSTRIES INC |  | 8X0017-2 | 72957 | ELLIOTT COMPANY |  | 8X0017PC1H2A | 72957 | ELLIOTT COMPANY |   
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  Techincal Specification:
 | STYLE DESIGNATOR | PLAIN FLANGED |  | FLANGE DIAMETER | 2.375 INCHES NOMINAL |  | BODY OUTSIDE DIAMETER | 2.124 INCHES MINIMUM AND |   | 2.125 INCHES MAXIMUM |  | BODY INSIDE DIAMETER | 1.248 INCHES MINIMUM AND |   | 1.250 INCHES MAXIMUM |  | FLANGE SEAT TO DISK END HEIGHT | 0.500 INCHES NOMINAL |  | UNDER FLANGE HEIGHT | 0.990 INCHES MINIMUM AND |   | 1.010 INCHES MAXIMUM |  | MATERIAL | STEEL OVERALL |  | MATERIAL DOCUMENT AND CLASSIFICATION | 17-4PH,ARMCO STEEL CORP MFR REF SINGLE MATERIAL RESPONSE OVERALL |  | SEATING SURFACE SHAPE | RADIAL |  | SEAT RADIUS | 0.373 INCHES MINIMUM AND |   | 0.377 INCHES MAXIMUM |  | THE MANUFACTURERS DATA |  |  | MANUFACTURERS CODE | 72957 |  | DESIGN CONTROL REFERENCE | 8X0017-2 |   
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