4470-00-913-6487 BOARD-DIODE-RESISTO Index 4470-00-913-6492 BONNET,VALVE

National Stock Number:
4820-00-913-6489

Federal Supply Class:
4820

National Item Identification Number:
009136489

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:
H26621PC421-2IN14959CRANE CO DIV VALVE DIV


Techincal Specification:
STYLE DESIGNATORTHREADED FLANGED
FLANGE DIAMETER3.278 INCHES NOMINAL
BODY INSIDE DIAMETER2.367 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.640 INCHES NOMINAL
UNDER FLANGE HEIGHT0.830 INCHES NOMINAL
MATERIALNICKEL ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B164-61,CLASS B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SEATING SURFACE SHAPEANGULAR
SEAT ANGLE IN DEG60.000 NOMINAL
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
NOMINAL THREAD SIZE2.943 INCHES SINGLE THREADED PORTION
THREAD QUANTITY PER INCH11-1/2 SINGLE THREADED PORTION
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.625 INCHES NOMINAL SINGLE THREADED PORTION
SPECIAL FEATURES4 WRENCHING NOTCHES AROUND TOP OF FLANGE


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