3a 1st end thread class 18.0 1st end thread quantity per inch union, bulkhead, external swage to male beam seal -10-1 equates to 0.159 swaged unjs 1st end thread series
3a 1st end thread class 14.0 1st end thread quantity per inch union, bulkhead, external swage to male beam seal -16-1 equates to 0.365 swaged unjs 1st end thread series
2a all ends thread class 20 all ends thread quantity per inch union passivate surface treated plain w/ center wrenching facility unf all ends thread series
2a all ends thread class 18 all ends thread quantity per inch straight thread connector short passivate surface treated plain w/ center wrenching facility unf all ends thread series