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 5905-01-262-0854
NSN 5960-01-303-0301
NSN 6240-00-421-5368
NSN 6620-00-422-5866
NSN 7035-00-931-9415
NSN 5999-00-063-3246
NSN 6320-00-701-0437
NSN 5996-00-156-4445
NSN 5960-01-398-9538
NSN 6145-01-411-4757
NSN 5920-01-166-4001
NSN 5999-01-370-3996