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National Stock Number:
4820-01-268-3280
Federal Supply Class:
4820
National Item Identification Number:
012683280
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:
| 803-4384536-21B-13 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 803-4384536-21B-85 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BODY INSIDE DIAMETER | 0.205 INCHES NOMINAL | | CRITICALITY CODE JUSTIFICATION | FEAT | | FLANGE DIAMETER | 0.694 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.091 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-288 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY OVERALL | | SEATING SURFACE SHAPE | FLAT | | SPECIAL FEATURES | WEAPON SYSTEM ESSENTIAL | | THREAD CLASS | 3A SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION | | UNDER FLANGE HEIGHT | 0.555 INCHES NOMINAL |
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