4820-01-092-6146 SEAT,VALVE Index 5365-01-092-6150 PLUG,MACHINE THREAD

National Stock Number:
4820-01-092-6147

Federal Supply Class:
4820

National Item Identification Number:
010926147

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:
2620-920X12 PC381982HYDRO-AIRE AEROSPACE CORP
2620-920X12 PC396169ELECTRIC BOAT CORPORATION
845-218128280064NAVAL SHIP SYSTEMS COMMAND
845-2181282 PIECE 3 3IN80064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BODY STEPPED INSIDE DIAMETER3.053 INCHES MINIMUM AND 3.063 INCHES MAXIMUM SECOND STEP
BODY STEPPED INSIDE DIAMETER2.620 INCHES MINIMUM AND 2.630 INCHES MAXIMUM FIRST STEP
FLANGE DIAMETER3.500 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.690 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY OVERALL
NOMINAL THREAD SIZE3.516 INCHES SINGLE THREADED PORTION
SEAT ANGLE IN DEG30.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
UNDER FLANGE HEIGHT0.810 INCHES NOMINAL
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS3A SINGLE THREADED PORTION
THREAD LENGTH0.795 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
THREAD QUANTITY PER INCH11-1/2 SINGLE THREADED PORTION


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