1.990" inside diameter 2.308" outside diameter 0.197" major thickness straight gap ring style all outside corners are rounded with a radius of 0.010 to 0.020 in.; inside corner has a radius of 0.005 to 0.015 in. matl is heat treated to 180/200 ksi ultimate tensile cadmium surface treated
Used on 2530-01-136-8738 tank,cmbt,improved armor,cmbt85sp2,m1ia. 0.250" major thickness a closed circle w/tabs, 2 ea, extending fr inside dia 180 deg apart. tab ht 0.225 in min to 0.230 in max. tabwidth 0.371 in min to 0.373 in max. tabs extend out at 45 deg angle toward inside ctr. outside dia 5.160 in nom. inside dia 4.705 in nom. black oxide coating. quench hardened. outside rim marked 19207-12286006
0.393" inside diameter 0.408" outside diameter 0.042" major thickness straight gap ring style part must be made with material grain flow oriented in a circumferential direction passivate surface treated
