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.
NSN 6240-01-508-9230
NSN 6110-01-525-7196
NSN 5990-01-263-0362
NSN 6135-01-566-1034
NSN 5930-00-592-9210
NSN 5855-01-612-7608
NSN 5996-00-838-0687
NSN 5996-01-600-0348
NSN 5945-00-406-4242
NSN 5920-01-581-3703
NSN 5999-01-015-0154
NSN 7035-01-064-8212