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		                        | National Stock Number:
 4820-01-066-6129
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 010666129
 
 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:
 
 | 51160-D | 76364 | MILWAUKEE VALVE CO, INC |  | 5160-D | 76364 | MILWAUKEE VALVE CO, INC |  | 5160-D1-380 | 76364 | MILWAUKEE VALVE CO, INC |  | 5160-DP-380 | 76364 | MILWAUKEE VALVE CO, INC | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | THREADED FLANGED |  | FLANGE DIAMETER | 0.935 INCHES NOMINAL |  | BODY INSIDE DIAMETER | 0.438 INCHES NOMINAL |  | FLANGE SEAT TO DISK END HEIGHT | 0.108 INCHES NOMINAL |  | UNDER FLANGE HEIGHT | 0.304 INCHES NOMINAL |  | MATERIAL | NICKEL ALLOY OVERALL |  | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281,CLASS 3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |  | SEATING SURFACE SHAPE | ANGULAR |  | SEAT ANGLE IN DEG | 15.000 NOMINAL |  | THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION |  | NOMINAL THREAD SIZE | 0.763 INCHES SINGLE THREADED PORTION |  | THREAD QUANTITY PER INCH | 24 SINGLE THREADED PORTION |  | THREAD CLASS | 2A SINGLE THREADED PORTION |  | THREAD LENGTH | 0.250 INCHES NOMINAL SINGLE THREADED PORTION | 
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