Used on shafting system p/n 49 busl 243-001 onboard 49 ft busl coast guard vessels. right-hand 5 thread quantity per inch material bronze with silicon insert, keystock 9/16 by 5 1/2 ins. lg, key split 1/4 by 2 1/4 ins. lg are included with the coupling
2b thread class right-hand 28 thread quantity per inch part of nut surface to be knurled; two wire holes located on nut flange; each hole has a outside diameter of .062 min an .065 max cadmium surface treated
