4820-01-287-0978 SEAT,VALVE Index 4820-01-287-0980 SEAT,VALVE

National Stock Number:
4820-01-287-0979

Federal Supply Class:
4820

National Item Identification Number:
012870979

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:
500000-060076364MILWAUKEE VALVE CO, INC
500000-0600-04J176364MILWAUKEE VALVE CO, INC
5152-S26H-18476364MILWAUKEE VALVE CO, INC
803-138554180064NAVAL SHIP SYSTEMS COMMAND
500000-0600-04J191643SERVICE BRASS AND ALUMINUM FOUNDRY CO, INC.


Techincal Specification:
BODY INSIDE DIAMETER6.875 INCHES NOMINAL
OVERALL HEIGHT1.750 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288/B FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIALNICKEL ALLOY SEAT
NOMINAL THREAD SIZE7.750 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPEANGULAR
SPECIAL FEATURESVALVE SIZE 6IN.
THREAD CLASS2B SINGLE THREADED PORTION
THREAD LENGTH0.625 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
THREAD QUANTITY PER INCH12 SINGLE THREADED PORTION


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