Per b-1 engineering
A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes bearing, plain, rod end and bearing, plain, spherical.
Classification: Spherical roller bearings, single row
NSN 5985-01-447-2721
NSN 6620-01-011-3449
NSN 6620-01-500-2456
NSN 6110-01-226-7687
NSN 5855-00-933-9978
NSN 6150-00-146-7964
NSN 6620-01-096-3723
NSN 6145-01-539-0473
NSN 5910-01-208-1216
NSN 6105-00-381-8599
NSN 6610-00-933-5951
NSN 6150-00-166-2114