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National Stock Number:
4820-01-157-5578
Federal Supply Class:
4820
National Item Identification Number:
011575578
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:
| 803-4384536-1XXX-46 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 803-4384536-1XXX-46 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BODY INSIDE DIAMETER | 0.250 INCHES NOMINAL | | FLANGE DIAMETER | 0.719 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.091 INCHES NOMINAL | | MATERIAL | NICKEL ALLOY OVERALL | | NOMINAL THREAD SIZE | 0.625 INCHES SINGLE THREADED PORTION | | SEATING SURFACE SHAPE | ANGULAR | | SEAT ANGLE IN DEG | 15.500 NOMINAL | | STYLE DESIGNATOR | THREADED FLANGED | | THREAD LENGTH | 0.234 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD CLASS | 3A SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UNEF SINGLE THREADED PORTION | | UNDER FLANGE HEIGHT | 0.315 INCHES NOMINAL |
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