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 5855-01-059-2710
NSN 5960-01-265-0354
NSN 6610-01-192-6478
NSN 5930-01-548-6135
NSN 6130-00-914-5937
NSN 5975-00-796-8995
NSN 4140-01-103-0677
NSN 6650-00-445-6990
NSN 6135-01-426-8282
NSN 7035-01-479-5268
NSN 6110-01-223-5973
NSN 6610-01-027-7970