A single or multiple piece item without ball, plain or roller bearing(s). It is designed to meet various or specific conditions of mounting. For items with bearings, see bearing unit, ball; bearing unit, plain; and bearing unit, roller.
steel overall material, 2.4410 inches nominal bore diameter, mil-s-46172 mil spec single material response overall material document and classification, multiple launch rocket system (mlrs) end item identification, 0.343 inches minimum and 0.400 inches maximum mounting hole diameter