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National Stock Number:
4820-01-092-1800
Federal Supply Class:
4820
National Item Identification Number:
010921800
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:
| 1385637-02X-08 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 803-1385637 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 803-1385637-02-08 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 810-1385637-02- | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| STYLE DESIGNATOR | THREADED FLANGED | | FLANGE DIAMETER | 3.156 INCHES NOMINAL | | BODY INSIDE DIAMETER | 2.875 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.656 INCHES NOMINAL | | UNDER FLANGE HEIGHT | 0.469 INCHES NOMINAL | | MATERIAL | NICKEL COPPER ALLOY,ASTM B164 OR QQ-N-288 SEAT | | SEATING SURFACE SHAPE | FLAT | | THREAD SERIES DESIGNATOR | UNS FIRST THREADED PORTION | | NOMINAL THREAD SIZE | 2.875 INCHES FIRST THREADED PORTION | | THREAD QUANTITY PER INCH | 12 FIRST THREADED PORTION | | THREAD CLASS | 3A FIRST THREADED PORTION | | THREAD LENGTH | 0.469 INCHES NOMINAL FIRST THREADED PORTION | | SPECIAL FEATURES | USED ON 2.500 IN. SIZE BRONZE,CHECK VALVE,250 PSI WOG |
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