9340-01-130-4376 TUBING,GLASS Index 9905-01-130-4379 BAND,MARKER

National Stock Number:
4820-01-130-4377

Federal Supply Class:
4820

National Item Identification Number:
011304377

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:
803-138554180064NAVAL SHIP SYSTEMS COMMAND
803-1385541-064-0480064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
STYLE DESIGNATORPLAIN THREADED
OVERALL HEIGHT1.790 INCHES NOMINAL
MATERIALNICKEL ALLOY OR
COPPER ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288/COMP-B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SEATING SURFACE SHAPEFLAT
SEAL ACCOMMODATION TYPESLEEVE
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
NOMINAL THREAD SIZE7.750 INCHES SINGLE THREADED PORTION
THREAD QUANTITY PER INCH12 SINGLE THREADED PORTION
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.812 INCHES MINIMUM AND
0.850 INCHES MAXIMUM SINGLE THREADED PORTION


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