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National Stock Number:
4820-00-394-7426
Federal Supply Class:
4820
National Item Identification Number:
003947426
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:
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Techincal Specification:
| BODY STEPPED INSIDE DIAMETER | 0.688 INCHES NOMINAL SECOND STEP | | BODY STEPPED INSIDE DIAMETER | 0.750 INCHES NOMINAL FIRST STEP | | FLANGE DIAMETER | 1.188 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.125 INCHES NOMINAL | | MATERIAL | NICKEL ALLOY OVERALL | | NOMINAL THREAD SIZE | 1.062 INCHES SINGLE THREADED PORTION | | SEATING SURFACE SHAPE | FLAT | | STYLE DESIGNATOR | THREADED FLANGED | | THREAD CLASS | 3A SINGLE THREADED PORTION | | THREAD LENGTH | 0.312 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UNEF SINGLE THREADED PORTION | | UNDER FLANGE HEIGHT | 0.312 INCHES NOMINAL |
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