4320-00-212-9498 IMPELLER,PUMP,CENTRIFUGAL Index 4320-00-212-9500 IMPELLER,PUMP

National Stock Number:
4320-00-212-9499

Federal Supply Class:
4320

National Item Identification Number:
002129499

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:
A0VNI1588US16062M.T. DAVIDSON COMPANY
H4320-212-949903950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
H4320-212-949980064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
MATERIALCOPPER ALLOY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY D3 FED SPEC SINGLE MATERIAL RESPONSE
BODY STYLEEXTERNAL FLANGE
OVERALL LENGTH0.750 INCHES NOMINAL
BOLT CIRCLE DIAMETER3.500 INCHES NOMINAL
FLANGE DIAMETER4.250 INCHES NOMINAL
BODY OUTSIDE DIAMETER2.999 INCHES NOMINAL
BODY INSIDE DIAMETER2.562 INCHES NOMINAL
LEFT SIDE FLANGE THICKNESS0.250 INCHES NOMINAL
BOLT HOLE QUANTITY2
UNTHREADED MOUNTING HOLE DIAMETER0.312 INCHES NOMINAL
CORNER SHAPESQUARE INSIDE LEFT CORNER
CHAMFERED INSIDE RIGHT CORNER
SQUARE OUTSIDE LEFT CORNER
SQUARE OUTSIDE RIGHT CORNER
CHAMFER ANGLE45.0 DEGREES NOMINAL INSIDE RIGHT CORNER
CHAMFER LENGTH0.125 INCHES NOMINAL INSIDE RIGHT CORNER
SPECIAL FEATURESBOLT HOLES COUNTERSUNK FOR 0.250 IN. FLATHEAD MACHINE SCREW ON FLANGED END


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