3b thread class right-hand flat countersunk undercut head style 32 thread quantity per inch identification color orange furnished w/ o ring cadmium surface treated
3b thread class right-hand flat countersunk undercut head style 32 thread quantity per inch identification color yellow furnished w/ o ring cadmium surface treated
3b thread class right-hand flat countersunk undercut head style 32 thread quantity per inch identification color green furnished w/ o ring cadmium surface treated
Used on very high frequency omnirange/tacan (vortac); vortac, plastic shelter. 3b thread class right-hand 18 thread quantity per inch function, nut, nylon; reference data, dwg de-a-2970, item m-6