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 5920-00-958-7202
NSN 5950-00-203-5809
NSN 5945-00-456-0699
NSN 6645-01-395-2989
NSN 5985-01-091-1059
NSN 5895-00-996-2960
NSN 6145-01-197-3887
NSN 5855-00-962-5792
NSN 5985-00-491-4338
NSN 7035-01-633-9537
NSN 5996-00-432-2405
NSN 5930-01-653-3269