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National Stock Number:
4820-01-204-8418
Federal Supply Class:
4820
National Item Identification Number:
012048418
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:
| 1889553 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 1889553 PIECE 31 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 2620-922X2 | 96169 | ELECTRIC BOAT CORPORATION | | 2620-922X2 ASSEMBLY GS PIECE 31 | 96169 | ELECTRIC BOAT CORPORATION | | 7874-94 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| STYLE DESIGNATOR | THREADED FLANGED | | FLANGE DIAMETER | 3.187 INCHES NOMINAL | | BODY INSIDE DIAMETER | 2.500 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.187 INCHES NOMINAL | | UNDER FLANGE HEIGHT | 0.531 INCHES NOMINAL | | MATERIAL | NICKEL ALLOY SEAT | | SEATING SURFACE SHAPE | ANGULAR | | SEAT ANGLE IN DEG | 45.000 NOMINAL |
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