4820-01-229-7325 SEAT,VALVE Index 5985-01-229-7327 SWITCH,RADIO FREQUENCY TRANSMISS

National Stock Number:
4820-01-229-7326

Federal Supply Class:
4820

National Item Identification Number:
012297326

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:
3281314959CRANE CO DIV VALVE DIV
32813-143 1/2U PIECE 8B 3IN14959CRANE CO DIV VALVE DIV


Techincal Specification:
BODY INSIDE DIAMETER2.625 INCHES NOMINAL
FLANGE DIAMETER3.875 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.690 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A216 GR.WCB ASSN STD SINGLE MATERIAL RESPONSE SEAT
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE3.500 INCHES SINGLE THREADED PORTION
SEAT ANGLE IN DEG15.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
SPECIAL FEATURESPARABOLIC TYPE
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.650 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
THREAD QUANTITY PER INCH11-1/2 SINGLE THREADED PORTION
UNDER FLANGE HEIGHT1.560 INCHES NOMINAL


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