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National Stock Number:
4820-00-428-7872
Federal Supply Class:
4820
National Item Identification Number:
004287872
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:
| L11798IM4 | K2980 | SHIPHAM VALVES A DIVISION OF HAMWORTH VALVES LTD | | L11798ITEM4 | K2980 | SHIPHAM VALVES A DIVISION OF HAMWORTH VALVES LTD | | M11600 | K2980 | SHIPHAM VALVES A DIVISION OF HAMWORTH VALVES LTD | | M11600ITEM4 | K2980 | SHIPHAM VALVES A DIVISION OF HAMWORTH VALVES LTD |
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Techincal Specification:
| BODY INSIDE DIAMETER | 3.000 INCHES NOMINAL | | FLANGE DIAMETER | 3.750 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.188 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B164-61,CLASS B ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY OVERALL | | NOMINAL THREAD SIZE | 3.500 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 | UNS SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 16 SINGLE THREADED PORTION | | UNDER FLANGE HEIGHT | 0.312 INCHES NOMINAL |
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