4320-00-218-4218 RING,WEARING Index 4320-00-218-4221 RING,WEARING

National Stock Number:
4320-00-218-4219

Federal Supply Class:
4320

National Item Identification Number:
002184219

Description:
RING,WEARING

Detail:
A cylindrical item with or without flange(s), designed to be inserted in a pump casing or secured to the impeller of a centrifugal pump. It is used for the purpose of providing a close running clearance between the impeller and casing in order to prevent or overcome leakage due to erosion. It may also be used as a diffuser ring in the suction and discharge throats of valves.


Manufacturer Information:
C103A63857CIRCOR NAVAL SOLUTIONS LLC
H4320-218-421903950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
H4320-218-421980064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
DISTANCE FROM END0.188 INCHES NOMINAL
BODY INSIDE DIAMETER2.750 INCHES NOMINAL
BODY OUTSIDE DIAMETER3.250 INCHES NOMINAL
BODY STYLEEXTERNAL LOCKING FLANGE
CENTER FLANGE THICKNESS0.500 INCHES NOMINAL
CORNER SHAPEROUND INSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
DISTANCE BELOW CENTERLINE0.062 INCHES NOMINAL
DISTANCE BETWEEN FLANGES0.625 INCHES NOMINAL
END TO FLANGE DISTANCE0.188 INCHES NOMINAL
GROOVE DEPTH0.062 INCHES NOMINAL
GROOVE WIDTH0.062 INCHES NOMINAL
INTERNAL FLANGE WIDTH0.375 INCHES NOMINAL
LARGEST EXTERNAL ANCHOR FLANGE RADIUS1.625 INCHES NOMINAL
LEFT SIDE FLANGE THICKNESS0.125 INCHES NOMINAL
OVERALL LENGTH0.875 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY 910 FED SPEC SINGLE MATERIAL RESPONSE
MATERIALCOPPER ALLOY
SMALLEST EXTERNAL ANCHOR FLANGE RADIUS1.812 INCHES NOMINAL
RIGHT SIDE FLANGE THICKNESS0.125 INCHES NOMINAL
SURFACE FINISH125.0 MICROINCHES ALL SURFACES


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