4820-01-374-3958 SEAT,VALVE Index 5985-01-374-3960 SWITCH,RADIO FREQUENCY TRANSMISS

National Stock Number:
4820-01-374-3959

Federal Supply Class:
4820

National Item Identification Number:
013743959

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:
NNK62-1630263PIMA VALVE, LLC
NNK62-16 PC1811859HUNT VALVE COMPANY, INC.
NNK62-16 PC1830263PIMA VALVE, LLC


Techincal Specification:
BODY INSIDE DIAMETER2.938 INCHES NOMINAL
FLANGE DIAMETER3.875 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.219 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288 COMP B FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIALNICKEL ALLOY SEAT
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD SIZE3.500 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPEFLAT
SPECIAL FEATURESFOR 3.000 IN. GATE VALVE
STYLE DESIGNATORTHREADED FLANGED
THREAD LENGTH0.500 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORNPT SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.500 INCHES NOMINAL


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