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National Stock Number:
4820-00-956-9447
Federal Supply Class:
4820
National Item Identification Number:
009569447
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:
| 35453X11802 | 53059 | SPIRAX SARCO INC |
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Techincal Specification:
| BODY INSIDE DIAMETER | 0.500 INCHES NOMINAL | | FLANGE DIAMETER | 1.245 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.159 INCHES NOMINAL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD SIZE | 1.000 INCHES FIRST THREADED PORTION | | SEAT ANGLE IN DEG | 0.500 NOMINAL | | SEATING SURFACE SHAPE | ANGULAR | | SPECIAL FEATURES | THIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL. THE CURRENT APPROVED SOURCE, 53059, HAS INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984. THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984 | | STYLE DESIGNATOR | THREADED FLANGED | | THREAD CLASS | 2A SINGLE THREADED PORTION | | THREAD LENGTH | 0.250 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 14 SINGLE THREADED PORTION | | UNDER FLANGE HEIGHT | 0.344 INCHES NOMINAL |
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