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National Stock Number: 4820-01-448-2290
Federal Supply Class: 4820
National Item Identification Number: 014482290
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:
| 4384536 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 803-4384536-38XX-86 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BODY INSIDE DIAMETER | 0.656 INCHES NOMINAL | | FLANGE DIAMETER | 0.875 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.219 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B164 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A494, GRADE -30C ASSN STD SINGLE MATERIAL RESPONSE SEAT | | MATERIAL | NICKEL ALLOY SEAT | | NOMINAL THREAD SIZE | 0.938 INCHES SINGLE THREADED PORTION | | SEAT ANGLE IN DEG | 45.000 NOMINAL | | SEATING SURFACE SHAPE | ANGULAR | | STYLE DESIGNATOR | THREADED FLANGED | | THREAD LENGTH | 0.219 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD CLASS | 3A SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 24 SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION | | UNDER FLANGE HEIGHT | 0.313 INCHES NOMINAL |
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