4720-01-196-8219 HOSE ASSEMBLY,NONMETALLIC Index 4320-01-196-8221 RING,WEARING

National Stock Number:
4820-01-196-8220

Federal Supply Class:
4820

National Item Identification Number:
011968220

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:
803-2177917-03-0280064NAVAL SHIP SYSTEMS COMMAND
803-2177917-03-3080064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BODY INSIDE DIAMETER2.938 INCHES NOMINAL
OVERALL HEIGHT0.625 INCHES MINIMUM AND 0.630 INCHES MAXIMUM
MATERIALCOPPER ALLOY OVERALL
NOMINAL THREAD SIZE3.688 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPEFLAT
STYLE DESIGNATORPLAIN THREADED
THREAD CLASS3A SINGLE THREADED PORTION
THREAD LENGTH0.500 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
THREAD QUANTITY PER INCH12 SINGLE THREADED PORTION


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