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National Stock Number:
4820-01-213-1473
Federal Supply Class:
4820
National Item Identification Number:
012131473
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:
| 803-1385541 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 803-1385541-043-04 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 803-1385541-043-26 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| OVERALL HEIGHT | 1.250 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-288 COMP B FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY OVERALL | | NOMINAL THREAD SIZE | 5.500 INCHES SINGLE THREADED PORTION | | SEAT ANGLE IN DEG | 30.000 NOMINAL | | SEATING SURFACE SHAPE | ANGULAR | | SPECIAL FEATURES | VALVE SIZE 4 IN. | | THREAD CLASS | 2A SINGLE THREADED PORTION | | THREAD LENGTH | 0.500 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 12 SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UN SINGLE THREADED PORTION |
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