Used on nha is "lubrication system pump group-engine oil,pn 139-4670;end item is cs-433c type i,vibrating roller,caterpillar direct vendor delivery (dvd) program.
Used on weapons bay d; aircraft, b-2 bomber (atb). 1.483" inside diameter 1.689" outside diameter 0.046" major thickness special flat ring style passivate surface treated