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National Stock Number:
4820-01-117-2812
Federal Supply Class:
4820
National Item Identification Number:
011172812
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:
| 2620-902 | 96169 | ELECTRIC BOAT CORPORATION | | 2620-902ASSYB 1/4IN PIECE25 | 96169 | ELECTRIC BOAT CORPORATION | | 61935 | 63686 | THE WALWORTH COMPANY | | 70061935 | 63686 | THE WALWORTH COMPANY | | 845-1889587 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 845-1889587ASSYB 1/4IN PIECE25 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| STYLE DESIGNATOR | THREADED FLANGED | | FLANGE DIAMETER | 0.750 INCHES NOMINAL | | BODY INSIDE DIAMETER | 0.388 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.121 INCHES NOMINAL | | UNDER FLANGE HEIGHT | 0.290 INCHES NOMINAL | | MATERIAL | NICKEL ALLOY OVERALL | | SEATING SURFACE SHAPE | FLAT | | THREAD SERIES DESIGNATOR | UNEF SINGLE THREADED PORTION | | NOMINAL THREAD SIZE | 0.625 INCHES SINGLE THREADED PORTION | | THREAD CLASS | 3A SINGLE THREADED PORTION | | THREAD LENGTH | 0.235 INCHES NOMINAL SINGLE THREADED PORTION |
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