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 7035-00-104-7613
NSN 6685-01-104-0908
NSN 5950-01-211-4233
NSN 5985-00-448-0045
NSN 5996-01-118-2296
NSN 5920-01-245-3584
NSN 5895-00-807-6558
NSN 6135-00-299-6918
NSN 5910-00-702-6427
NSN 5985-01-555-1588
NSN 6130-00-959-5800
NSN 2925-01-501-1104