4820-01-146-4136 SEAT,VALVE Index 5985-01-146-4138 SWITCH,RADIO FREQUENCY TRANSMISS

National Stock Number:
4820-01-146-4137

Federal Supply Class:
4820

National Item Identification Number:
011464137

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:
803-217791780064NAVAL SHIP SYSTEMS COMMAND
803-2177917-12-0280064NAVAL SHIP SYSTEMS COMMAND
803-2177917-12-3080064NAVAL SHIP SYSTEMS COMMAND
803-2177917-12-4580064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BODY INSIDE DIAMETER11.938 INCHES NOMINAL
OVERALL HEIGHT1.031 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY OVERALL
NOMINAL THREAD SIZE13.313 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPEFLAT
SPECIAL FEATURESFOR 12.000 GATE VALVE
STYLE DESIGNATORPLAIN THREADED
THREAD CLASS3A SINGLE THREADED PORTION
THREAD LENGTH1.031 INCHES MINIMUM SINGLE THREADED PORTION
THREAD QUANTITY PER INCH12 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION


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