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		                             National Stock Number: 4820-01-067-6334
  Federal Supply Class: 4820
  National Item Identification Number: 010676334
  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:
 | 51158-E-380 | 76364 | MILWAUKEE VALVE CO, INC |  | 51158E | 76364 | MILWAUKEE VALVE CO, INC |  | 5841 594-1 | 76364 | MILWAUKEE VALVE CO, INC |  | 845-1889587 PIECE 4 3/4IN | 80064 | NAVAL SHIP SYSTEMS COMMAND |   
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  Techincal Specification:
 | STYLE DESIGNATOR | THREADED FLANGED |  | FLANGE DIAMETER | 1.252 INCHES NOMINAL |  | BODY INSIDE DIAMETER | 0.574 INCHES NOMINAL |  | FLANGE SEAT TO DISK END HEIGHT | 0.125 INCHES NOMINAL |  | UNDER FLANGE HEIGHT | 0.341 INCHES NOMINAL |  | MATERIAL | STEEL CORROSION RESISTING OVERALL |  | SEATING SURFACE SHAPE | ANGULAR |  | SEAT ANGLE IN DEG | 75.000 NOMINAL |  | THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION |  | NOMINAL THREAD SIZE | 1.050 INCHES SINGLE THREADED PORTION |  | THREAD QUANTITY PER INCH | 20 SINGLE THREADED PORTION |  | THREAD CLASS | 2A SINGLE THREADED PORTION |  | THREAD LENGTH | 0.250 INCHES NOMINAL SINGLE THREADED PORTION |  | SPECIAL FEATURES | INTERNAL OCTAGON WRENCH FEATURES |   
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