4820-00-346-6527 SPRING AND PLATE,VALVE Index 4820-00-346-6530 ADJUSTING RING,VALVE

National Stock Number:
4820-00-346-6529

Federal Supply Class:
4820

National Item Identification Number:
003466529

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:
8037A06B38056ASHCROFT INC
H4820-346-652903950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
R557-49090APC1638056ASHCROFT INC
R557-49120APC1638056ASHCROFT INC
R557-49330APC1638056ASHCROFT INC
R557-49340CPC1638056ASHCROFT INC


Techincal Specification:
STYLE DESIGNATORTHREADED FLANGED
FLANGE DIAMETER2.188 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.438 INCHES NOMINAL
UNDER FLANGE HEIGHT0.438 INCHES NOMINAL
BODY STEPPED INSIDE DIAMETER1.695 INCHES MINIMUM AND
1.697 INCHES MAXIMUM FIRST STEP
1.558 INCHES MINIMUM AND
1.568 INCHES MAXIMUM SECOND STEP
1.436 INCHES MINIMUM AND
1.440 INCHES MAXIMUM THIRD STEP
MATERIALCOBALT ALLOY OVERALL
SEATING SURFACE SHAPEFLAT
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
NOMINAL THREAD SIZE2.000 INCHES SINGLE THREADED PORTION
THREAD QUANTITY PER INCH16 SINGLE THREADED PORTION
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.438 INCHES NOMINAL SINGLE THREADED PORTION


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