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 6240-01-063-7685
NSN 6130-00-086-9502
NSN 5985-01-547-7766
NSN 5975-01-308-3938
NSN 5950-01-241-3663
NSN 5985-01-188-7408
NSN 5905-01-413-0055
NSN 6610-01-426-3514
NSN 6610-00-915-3215
NSN 5915-01-332-4022
NSN 2925-01-157-9204
NSN 6620-00-349-4703