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National Stock Number:
4820-01-505-5925
Federal Supply Class:
4820
National Item Identification Number:
015055925
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:
| 4384536 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 803-4384536 PC NO 85 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 803-4384536-41A-85 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B164 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A494 GR. -30C ASSN STD SINGLE MATERIAL RESPONSE SEAT | | MATERIAL | NICKEL ALLOY SEAT | | NOMINAL THREAD SIZE | 1.1875 INCHES SINGLE THREADED PORTION | | SEAT ANGLE IN DEG | 45.000 NOMINAL | | SEATING SURFACE SHAPE | ANGULAR | | THREAD LENGTH | 0.1719 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD CLASS | 3A SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UN SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 20 SINGLE THREADED PORTION |
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