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 5915-01-079-1093
NSN 5985-01-108-4328
NSN 5925-01-061-9717
NSN 6220-00-222-5663
NSN 5915-01-121-3453
NSN 5855-00-106-1640
NSN 5855-01-529-6369
NSN 6645-01-032-5337
NSN 4140-01-161-8955
NSN 5950-01-205-8137
NSN 6110-00-015-7688
NSN 5965-01-486-9586