Special Features:

Alternate materials ams 6395, 4140 or 4142; or ams 6359, 4340, hot rolled or cold finished or astm-a322 hot rolled or astm-a331 cold finished; 4130, 4140 or 4340; or 172a1659; alternate surface treatments are phosphate coating 5.3.1.3 or 5.3.2.3 of mil-std-171 w/dimensions applying before coating.; item is round in shape od 3.860 in. Porm 0.030 in., id 2.254 in porm 0.005 in.; there are 2 mtg holes, 1 has diameter 0.3795 in. Porm 0.0025 w/dist from cntr of item to 1st hole 1.486 in.; 2nd hole has diameter 0.225 in. Porm 0.007 in., w/dist from cntr of item to hole cntr 1.450 in.; 2nd hole cbored to diameter 0.440 in. Porm 0.020 in. To depth of 0.380. Porm 0.020 in.; flange radius 2.440 in. Porm 0.030 in

Properties:

An item designed to restrict the movement of a rotary mechanism, linear mechanism or its components. It protects a mechanism from loss of adjustment or damage due to extreme movement. It may be wedge shaped with a threaded shank projecting from the apex or it may be round or rectangular in cross section, with mounting holes or slots, and is usually longer than its width. Excludes key, machine, and bumper (as modified).