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National Stock Number:
4820-01-221-7338
Federal Supply Class:
4820
National Item Identification Number:
012217338
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:
| 152F 4IN ITEM 6 | 79342 | WILLIAM E WILLIAMS VALVE CORP | | 152F ITEM 6 | 79342 | WILLIAM E WILLIAMS VALVE CORP |
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Techincal Specification:
| BODY INSIDE DIAMETER | 1.025 INCHES NOMINAL | | FLANGE DIAMETER | 1.635 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.185 INCHES MINIMUM AND 0.375 INCHES MAXIMUM | | MATERIAL | COPPER ALLOY OVERALL | | NOMINAL THREAD SIZE | 1.500 INCHES SINGLE THREADED PORTION | | SEATING SURFACE SHAPE | FLAT | | SPECIAL FEATURES | SURFACE TREATMENT IS STELLITE | | UNDER FLANGE HEIGHT | 0.250 INCHES NOMINAL | | STYLE DESIGNATOR | THREADED FLANGED | | THREAD CLASS | 3A SINGLE THREADED PORTION | | THREAD LENGTH | 0.170 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UNEF SINGLE THREADED PORTION |
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