Used on aircraft application. 3b thread class right-hand 16 thread quantity per inch undercut at end of internal thd 0.084 in. min/0.104 in. max w, 0.750 in. min/0.780 in. max dia, two lockwire holes @0.042 in. min/0.052 in. max dia drilled thru opposite corners of hex
Used on aircraft application. 3b thread class right-hand 12 thread quantity per inch undercut at end of internal thd 0.115 in. min/0.135 in. max w, 1.188 in. min/1.217 in. max dia, two lockwire holes 0.065 in. min/0.075 in. max dia drilled thru opposite corner of hex silver surface treated
Used on sikorsky cargo transport helicopter. 3a 3rd end bulkhead thread class 12 3rd end bulkhead thread quantity per inch anodize surface treated unj 3rd end bulkhead thread series
