4820-01-057-6127 SEAT,VALVE Index 4820-01-057-6129 SEAT,VALVE

National Stock Number:
4820-01-057-6128

Federal Supply Class:
4820

National Item Identification Number:
010576128

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:
201965ASSY93PC2443689HUNTINGTON INGALLS INC


Techincal Specification:
STYLE DESIGNATORPLAIN THREADED
OVERALL HEIGHT0.645 INCHES NOMINAL
BODY INSIDE DIAMETER5.575 INCHES NOMINAL
MATERIALCOPPER ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SEATING SURFACE SHAPEANGULAR
SEAT ANGLE IN DEG30.000 NOMINAL
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
NOMINAL THREAD SIZE1.625 INCHES SINGLE THREADED PORTION
THREAD QUANTITY PER INCH12 SINGLE THREADED PORTION
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.525 INCHES NOMINAL SINGLE THREADED PORTION


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