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 6130-01-250-2822
NSN 5930-01-204-7326
NSN 6610-01-083-1446
NSN 5945-01-475-7728
NSN 5920-01-463-2530
NSN 5975-01-336-6243
NSN 6110-00-089-7348
NSN 5835-01-248-6688
NSN 6135-01-050-3194
NSN 5965-00-831-2134
NSN 5915-00-829-9858
NSN 5905-01-277-9577