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National Stock Number:
4820-00-036-1985
Federal Supply Class:
4820
National Item Identification Number:
000361985
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:
| 0083757 | 16497 | DRESSER, INC. | | 76-S-104 PIECE 4 | 71905 | DERBYSHIRE MACHINE & TOOL CO | | 83757 | 38056 | ASHCROFT INC |
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Techincal Specification:
| BODY INSIDE DIAMETER | 3.375 INCHES NOMINAL | | FLANGE DIAMETER | 4.250 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.688 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD SIZE | 4.250 INCHES SINGLE THREADED PORTION | | SEAT ANGLE IN DEG | 45.000 NOMINAL | | SEATING SURFACE SHAPE | ANGULAR | | STYLE DESIGNATOR | THREADED FLANGED | | THREAD CLASS | 3A SINGLE THREADED PORTION | | THREAD LENGTH | 0.750 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 14 SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UN SINGLE THREADED PORTION | | UNDER FLANGE HEIGHT | 1.875 INCHES NOMINAL |
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