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National Stock Number:
4820-00-035-9933
Federal Supply Class:
4820
National Item Identification Number:
000359933
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:
| C4618 | 86184 | GRISWOLD INDUSTRIES | | C4618K | 86184 | GRISWOLD INDUSTRIES |
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Techincal Specification:
| BODY INSIDE DIAMETER | 4.000 INCHES MINIMUM AND 4.004 INCHES MAXIMUM | | FLANGE DIAMETER | 5.000 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.375 INCHES NOMINAL | | MATERIAL | COPPER OVERALL | | NOMINAL THREAD SIZE | 4.500 INCHES SINGLE THREADED PORTION | | SEATING SURFACE SHAPE | FLAT | | SPECIAL FEATURES | TWO LUGS EQUALLY SPACED ON PERIMETER OF FLANGE,0.188 IN.H,0.625 IN.W | | STYLE DESIGNATOR | THREADED FLANGED | | THREAD CLASS | 2A SINGLE THREADED PORTION | | THREAD LENGTH | 0.391 INCHES MINIMUM FIRST THREADED PORTION | | THREAD LENGTH | 0.422 INCHES MAXIMUM SECOND THREADED PORTION | | THREAD QUANTITY PER INCH | 16 SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UN SINGLE THREADED PORTION | | UNDER FLANGE HEIGHT | 1.562 INCHES NOMINAL |
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