3a all ends thread class one end thd internally 10-32 unjf-3b thd, and hex drilled for 2 lockwire holes 0.046 in. dia flared w/ center wrenching facility unf all ends thread series
3a 1st end bulkhead thread class 12 1st end bulkhead thread quantity per inch cadmium surface treated flaremess w/ bulkhead threads unj 1st end bulkhead thread series
3a all ends thread class 12 all ends thread quantity per inch drilled for lockwire 0.064 min 0.076 max in. dia passivate surface treated flared w/ center wrenching facility un all ends thread series
Used on aircraft application. 3a all ends thread class 12 all ends thread quantity per inch anodize inside surface treated flareless w/ offset wrenching facility un all ends thread series