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 6130-00-689-6721
NSN 5950-01-521-1127
NSN 5895-01-453-7978
NSN 6110-01-458-1006
NSN 5950-00-996-0431
NSN 6110-01-400-3436
NSN 5855-00-221-9435
NSN 5945-01-381-2038
NSN 5945-01-516-9608
NSN 5950-01-552-4374
NSN 5975-01-317-4323
NSN 6685-01-272-1868