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 5996-01-041-3206
NSN 6685-00-487-4472
NSN 5935-01-026-0251
NSN 5998-01-413-8433
NSN 7035-01-387-0493
NSN 5985-00-351-5332
NSN 6645-01-350-3138
NSN 5910-01-085-6210
NSN 5855-01-406-9451
NSN 5950-01-344-0434
NSN 6135-01-447-3086
NSN 5998-00-480-6729