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.
Classification: Parts of turbojet and turbopropeller aircraft engines, other than for use in civil aircraft
NSN 2925-00-428-6349
NSN 6130-00-807-9513
NSN 6685-01-020-7235
NSN 6145-00-838-9446
NSN 5895-01-215-1059
NSN 5835-01-486-0545
NSN 5960-01-516-7264
NSN 5855-01-229-3864
NSN 6240-00-842-2887
NSN 5999-01-100-0464
NSN 5945-01-449-7909
NSN 6610-01-350-7697