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National Stock Number:
4820-00-217-2793
Federal Supply Class:
4820
National Item Identification Number:
002172793
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:
| 240-4801-1036168REVAPC7 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BODY INSIDE DIAMETER | 3.875 INCHES NOMINAL | | OVERALL HEIGHT | 0.688 INCHES NOMINAL | | MATERIAL | NICKEL ALLOY BODY | | NOMINAL THREAD SIZE | 4.375 INCHES SINGLE THREADED PORTION | | SEAT ANGLE IN DEG | 15.000 NOMINAL | | SEATING SURFACE SHAPE | ANGULAR | | STYLE DESIGNATOR | PLAIN THREADED | | THREAD CLASS | 4A SINGLE THREADED PORTION | | THREAD LENGTH | 0.563 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 12 SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UN SINGLE THREADED PORTION |
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