4820-01-268-3282 SEAT,VALVE Index 5985-01-268-3284 SWITCH,RADIO FREQUENCY TRANSMISS

National Stock Number:
4820-01-268-3283

Federal Supply Class:
4820

National Item Identification Number:
012683283

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.


Manufacturer Information:
803-4384536-45A-4680064NAVAL SHIP SYSTEMS COMMAND
803-4384536-45A-8680064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BODY INSIDE DIAMETER0.655 INCHES NOMINAL
FLANGE DIAMETER1.109 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.091 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY OVERALL
SEATING SURFACE SHAPEFLAT
THREAD CLASS2A SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.253 INCHES NOMINAL


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