3a 2nd end thread class 12 all ends thread quantity per inch drilled for lockwire on first end anodize surface treated plain unj all ends thread series
3b 1st end thread class 16 1st end thread quantity per inch the sleeve is polytetrafluoroethylene coated green per deutsch spec DPS1-10-14-01-02, 0.190/0.240 in. lg passivate surface treated swaged unjs 1st end thread series
3a 1st end bulkhead thread class polytetrafluoroethylene coat both ends internally 0.423 in.from the end passivate surface treated swaged ends w/bulkhead unjf 1st end bulkhead thread series
3a 1st end bulkhead thread class 12 1st end bulkhead thread quantity per inch polytetrafluoroethylene coat both ends internally 0.423 in. from the end plastic polytetrafluoroethylene outside surface treated swaged ends w/bulkhead unj 1st end bulkhead thread series
Used on b-1b bomber. 3b 1st end thread class 20 1st end thread quantity per inch fitting dynatube mechanically attached 2 lockwire holes; first end connection is a modified flare/compression "dynatube". dynatube unjs 1st end thread series