4820-00-301-5514 DISK,VALVE Index 3120-00-301-5516 SLEEVE,PISTON

National Stock Number:
4820-00-301-5515

Federal Supply Class:
4820

National Item Identification Number:
003015515

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:
AV39-984PC3304845AUTOMATIC SWITCH COMPANY
AV40-996PC3304845AUTOMATIC SWITCH COMPANY
FV10-572-304845AUTOMATIC SWITCH COMPANY


Techincal Specification:
BODY INSIDE DIAMETER1.500 INCHES NOMINAL
FLANGE DIAMETER2.250 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.157 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-N-894 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY OVERALL
NOMINAL THREAD SIZE2.000 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPEANGULAR
SEAT ANGLE IN DEG60.000 NOMINAL
STYLE DESIGNATORTHREADED FLANGED
SPECIAL FEATURESTWO LUGS ON THREADED END 180 @DEG APART
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.438 INCHES NOMINAL SINGLE THREADED PORTION
THREAD QUANTITY PER INCH18 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.812 INCHES NOMINAL


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