2520-00-318-0230 PISTON,ROD HYDRAULIC Index 3020-00-318-0232 GEAR,SPUR

National Stock Number:
4820-00-318-0231

Federal Supply Class:
4820

National Item Identification Number:
003180231

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:
871354119207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
BODY STEPPED INSIDE DIAMETER0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM SECOND STEP
BODY STEPPED INSIDE DIAMETER0.297 INCHES MINIMUM AND 0.307 INCHES MAXIMUM FIRST STEP
OVERALL HEIGHT0.703 INCHES NOMINAL
MATERIALSTEEL COMP 303 OR STEEL COMP B1113 OVERALL
NOMINAL THREAD SIZE0.625 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPEFLAT
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.250 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNF SINGLE THREADED PORTION
THREAD QUANTITY PER INCH18 SINGLE THREADED PORTION


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