2.125 in. length of black pipe thru top cover, 3/8-18 in. std pipe thd on outer end, w/locknut braxed to pipe, pipe sloped at 13.5 deg angle tin surface treated concave
Used on aircraft fluid systems. 3b internal thread class right-hand internal 12 internal thread quantity per inch anodize surface treated cap, tube, flareless unj internal thread series