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National Stock Number: 4820-00-469-0085
Federal Supply Class: 4820
National Item Identification Number: 004690085
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:
2476-68PCE | 96169 | ELECTRIC BOAT CORPORATION | 313-4900-233412PCE | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
BODY INSIDE DIAMETER | 2.313 INCHES NOMINAL | FLANGE DIAMETER | 3.250 INCHES NOMINAL | FLANGE SEAT TO DISK END HEIGHT | 0.313 INCHES NOMINAL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-C-390,ALLOY D5 FED SPEC SINGLE MATERIAL RESPONSE BODY | MATERIAL | COPPER ALLOY BODY | NOMINAL THREAD SIZE | 2.875 INCHES SINGLE THREADED PORTION | SEATING SURFACE SHAPE | ANGULAR | STYLE DESIGNATOR | PLAIN FLANGED | THREAD CLASS | 2A SINGLE THREADED PORTION | THREAD QUANTITY PER INCH | 16 SINGLE THREADED PORTION | THREAD SERIES DESIGNATOR | UN SINGLE THREADED PORTION | UNDER FLANGE HEIGHT | 1.125 INCHES NOMINAL |
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