A special single or multiple-row ball bearing, rigid or self-aligning, and constructed with either a solid or hollow shank, internally or externally threaded.
mil-g-81322 mil spec single material response lubrication material document and classification, 0.2450 inches minimum and 0.2500 inches maximum inner ring width, 0.8330 inches minimum and 0.8530 inches maximum length from bore center to shank end, 0.1870 inches nominal bore diameter, self-aligning alignment type