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 5920-00-565-9022
NSN 6110-00-512-7845
NSN 6135-00-958-7981
NSN 5835-01-281-7281
NSN 4140-01-371-0327
NSN 5996-00-073-6999
NSN 5905-00-404-5173
NSN 6150-01-427-3764
NSN 5920-01-526-2207
NSN 5835-01-456-3922
NSN 5920-00-391-6252
NSN 6145-01-549-8410