4820-01-231-4125 SEAT,VALVE Index 4820-01-231-4127 SEAT,VALVE

National Stock Number:
4820-01-231-4126

Federal Supply Class:
4820

National Item Identification Number:
012314126

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 8A-3IN14959CRANE CO DIV VALVE DIV
B-10491214959CRANE CO DIV VALVE DIV


Techincal Specification:
STYLE DESIGNATORTHREADED FLANGED
FLANGE DIAMETER3.875 INCHES NOMINAL
BODY INSIDE DIAMETER2.625 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.630 INCHES NOMINAL
UNDER FLANGE HEIGHT0.810 INCHES NOMINAL
MATERIALCOBALT ALLOY BODY
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A567 GR.12 ASSN STD SINGLE MATERIAL RESPONSE SEAT
SEATING SURFACE SHAPEANGULAR
SEAT ANGLE IN DEG15.000 NOMINAL
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
NOMINAL THREAD SIZE3.515 INCHES SINGLE THREADED PORTION
THREAD QUANTITY PER INCH11-1/2 SINGLE THREADED PORTION
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.650 INCHES NOMINAL SINGLE THREADED PORTION
SPECIAL FEATURESSTANDARD TYPE SEAT


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