4820-01-323-8644 SEAT,VALVE Index 4820-01-323-8646 SEAT,VALVE

National Stock Number:
4820-01-323-8645

Federal Supply Class:
4820

National Item Identification Number:
013238645

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 143XR PC 8A 4.00IN14959CRANE CO DIV VALVE DIV
32813 143XR PC 8A&24 4.00IN14959CRANE CO DIV VALVE DIV


Techincal Specification:
STYLE DESIGNATORTHREADED FLANGED
FLANGE DIAMETER4.920 INCHES NOMINAL
BODY INSIDE DIAMETER3.563 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.440 INCHES NOMINAL
UNDER FLANGE HEIGHT1.895 INCHES NOMINAL
MATERIALNICKEL ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B164 R-405 ASSN STD SINGLE MATERIAL RESPONSE SEAT
SEATING SURFACE SHAPEANGULAR
SEAT ANGLE IN DEG30.000 NOMINAL
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
NOMINAL THREAD SIZE4.513 INCHES SINGLE THREADED PORTION
THREAD QUANTITY PER INCH11-1/2 SINGLE THREADED PORTION
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.720 INCHES NOMINAL SINGLE THREADED PORTION


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