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		                        | National Stock Number:
 4820-00-852-5436
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 008525436
 
 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:
 
 | 1562793 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | PLAIN THREADED |  | OVERALL HEIGHT | 0.250 INCHES NOMINAL |  | BODY INSIDE DIAMETER | 0.250 INCHES NOMINAL |  | MATERIAL | STEEL COMP 303SE OVERALL |  | SEATING SURFACE SHAPE | ANGULAR |  | SEAT ANGLE IN DEG | 90.000 NOMINAL |  | THREAD SERIES DESIGNATOR | UNF SINGLE THREADED PORTION |  | NOMINAL THREAD SIZE | 0.437 INCHES SINGLE THREADED PORTION |  | THREAD CLASS | 2A SINGLE THREADED PORTION |  | THREAD LENGTH | 0.125 INCHES NOMINAL SINGLE THREADED PORTION | 
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