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 5910-00-073-0902
NSN 5998-01-457-6677
NSN 5960-00-539-7914
NSN 6130-01-421-4296
NSN 5996-00-761-6511
NSN 5835-00-993-7957
NSN 6105-01-391-5390
NSN 6150-00-926-2938
NSN 6645-01-425-2330
NSN 5960-01-467-7516
NSN 6220-01-375-7521
NSN 5950-01-634-0677