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National Stock Number:
4820-00-620-8515
Federal Supply Class:
4820
National Item Identification Number:
006208515
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:
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Techincal Specification:
| BODY INSIDE DIAMETER | 4.375 INCHES NOMINAL | | FLANGE DIAMETER | 5.187 INCHES NOMINAL | | MATERIAL | STEEL COMP 414 OVERALL | | NOMINAL THREAD SIZE | 5.187 INCHES SINGLE THREADED PORTION | | SEATING SURFACE SHAPE | FLAT | | THREAD CLASS | 2A SINGLE THREADED PORTION | | THREAD LENGTH | 0.750 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 18 SINGLE THREADED PORTION | | UNDER FLANGE HEIGHT | 1.750 INCHES NOMINAL |
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