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National Stock Number:
4820-01-431-9193
Federal Supply Class:
4820
National Item Identification Number:
014319193
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:
| 803-6983468 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 803-6983468-PCO33 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| BODY INSIDE DIAMETER | 3.000 INCHES MINIMUM AND 3.002 INCHES MAXIMUM | | FLANGE DIAMETER | 3.500 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.188 INCHES NOMINAL | | MATERIAL | ALUMINUM OVERALL | | NOMINAL THREAD SIZE | 3.125 INCHES SINGLE THREADED PORTION | | SEATING SURFACE SHAPE | FLAT | | STYLE DESIGNATOR | THREADED FLANGED | | THREAD CLASS | 2A SINGLE THREADED PORTION | | THREAD LENGTH | 0.570 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 8 SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UN SINGLE THREADED PORTION | | UNDER FLANGE HEIGHT | 0.970 INCHES NOMINAL |
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