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 6150-01-185-8240
NSN 5965-00-964-1756
NSN 6610-00-574-6198
NSN 5895-00-152-0104
NSN 6240-01-500-9044
NSN 6145-00-869-6469
NSN 5920-00-921-0390
NSN 6220-01-425-1132
NSN 5996-00-825-7240
NSN 6150-01-140-7659
NSN 6610-00-837-3012
NSN 5945-00-227-8581