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 4140-01-228-3443
NSN 5835-01-187-8986
NSN 6145-00-397-0726
NSN 6220-01-448-4110
NSN 6135-01-214-6441
NSN 6610-00-735-2888
NSN 5930-01-463-4394
NSN 5920-01-376-4926
NSN 5925-01-201-9405
NSN 5985-00-054-4275
NSN 6610-00-686-5817
NSN 6620-00-135-9338