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.
c5 aircraft end item identification, steel comp e4340 housing material, 0.9375 inches minimum and 0.9384 inches maximum bore diameter, mil-s-5000 cond e-4 mil spec single material response housing material document and classification