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National Stock Number:
4820-00-318-0231
Federal Supply Class:
4820
National Item Identification Number:
003180231
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:
| 8713541 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| OVERALL HEIGHT | 0.703 INCHES NOMINAL | | BODY STEPPED INSIDE DIAMETER | 0.297 INCHES MINIMUM AND | | 0.307 INCHES MAXIMUM FIRST STEP | | 0.245 INCHES MINIMUM AND | | 0.255 INCHES MAXIMUM SECOND STEP | | MATERIAL | STEEL COMP 303 OR | | STEEL COMP B1113 OVERALL | | SEATING SURFACE SHAPE | FLAT | | THREAD SERIES DESIGNATOR | UNF SINGLE THREADED PORTION | | NOMINAL THREAD SIZE | 0.625 INCHES SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 18 SINGLE THREADED PORTION | | THREAD CLASS | 2A SINGLE THREADED PORTION | | THREAD LENGTH | 0.250 INCHES NOMINAL SINGLE THREADED PORTION |
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