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National Stock Number:
4820-01-286-8633
Federal Supply Class:
4820
National Item Identification Number:
012868633
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:
| 803-4384536 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 803-4384536-35X | 53711 | NAVAL SEA SYSTEMS COMMAND | | 803-4384536-3XAX-46 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 803-4384536-3XXX-46 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BODY INSIDE DIAMETER | 0.438 INCHES NOMINAL | | OVERALL HEIGHT | 0.406 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-288 FED SPEC 1ST MATERIAL RESPONSE SEAT | | MATERIAL | NICKEL ALLOY SEAT | | NOMINAL THREAD SIZE | 0.938 INCHES SINGLE THREADED PORTION | | SEAT ANGLE IN DEG | 15.500 NOMINAL | | SEATING SURFACE SHAPE | ANGULAR | | STYLE DESIGNATOR | PLAIN THREADED | | THREAD CLASS | 3A SINGLE THREADED PORTION | | THREAD LENGTH | 0.297 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 24 SINGLE THREADED PORTION |
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