4820-01-455-5031 DIAPHRAGM,VALVE,FLAT Index 4820-01-455-5033 CAP,VALVE

National Stock Number:
4820-01-455-5032

Federal Supply Class:
4820

National Item Identification Number:
014555032

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:
438453680064NAVAL SHIP SYSTEMS COMMAND
803-4384536-1XXX-8680064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BODY INSIDE DIAMETER0.250 INCHES NOMINAL
FLANGE DIAMETER0.719 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.091 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B164 AND ASTM A494 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY OVERALL
NOMINAL THREAD SIZE0.625 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPEFLAT
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS3A SINGLE THREADED PORTION
THREAD LENGTH0.235 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNEF SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.316 INCHES NOMINAL


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