SPECIFICATIONS Caterpillar NBR (75) O-Ring (1163682) 116-3682 Coating: No Cross Section Diameter (in): 0.08 Inner diameter (inches): 2.93 Outside diameter (in): 3.091 Hardness (Shore A): 75 Material: NBR - nitrile COMPATIBLE MODELS FOR PART NUMBER 116-3682 OFF-ROAD DUMP TRUCK 797 797B EXCAVATOR 311B 320B 320B L 345B 345B II 345B II MH 345B L 365B 365B II 365B L 385B 5090B WHEEL EXCAVATOR W345B II Weight(lbs): 0.1 Length(cm): 7.7 Width(cm): 7.7 Depth(cm): 0.1 1163682