3b internal thread class right-hand internal 0.025 in. min, 0.030 in. max dia hole drilled in insert anodize surface treated cap, tube, flareless unf internal thread series
Used on sikorsky cargo transport helicopter ch-54a and ch-54b. 2b internal thread class right-hand internal anodize surface treated cap, tube coupling, gasket seal unef internal thread series
Used on f/a-18 hornet aircraft. 3b internal thread class right-hand internal weapon system essential passivate surface treated cap, tube, flared unjf internal thread series
Used on aircraft, a10, b-2,b-52, f-4, c-135, oh-58, ch-47, eh-60, and uh-1. right-hand internal 12 internal thread quantity per inch weapon system essential anodize surface treated cap, tube, flared unj internal thread series
3b internal thread class right-hand internal 20 internal thread quantity per inch assembly of cap anodize surface treated cap, tube, flared unj internal thread series
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