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National Stock Number: 4820-01-417-9542
Federal Supply Class: 4820
National Item Identification Number: 014179542
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:
| 6397434 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 6397434-X2XXXX-022 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 803-6397434-X21 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 803-6397434-X2XXXX-022 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| BODY INSIDE DIAMETER | 0.471 INCHES NOMINAL | | FLANGE DIAMETER | 0.930 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.122 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-C-24252 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COBALT COMP L-605 OVERALL | | NOMINAL THREAD SIZE | 0.765 INCHES SINGLE THREADED PORTION | | SEATING SURFACE SHAPE | O-RING | | UNDER FLANGE HEIGHT | 0.316 INCHES NOMINAL | | STYLE DESIGNATOR | THREADED FLANGED | | TAPER LENGTH | 0.216 INCHES NOMINAL | | TAPER MAJOR DIAMETER | 0.547 INCHES NOMINAL | | TAPER MINOR DIAMETER | 0.471 INCHES NOMINAL | | THREAD CLASS | 3A SINGLE THREADED PORTION | | THREAD LENGTH | 0.316 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 24 SINGLE THREADED PORTION |
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