Push-Lock Fittings, Quick Fittings 1:Application:Compressed Air,Fluid 2:Materials:Nickel-Plated Brass 3:O Ring:NBR/ ... pneumatic fittings for plastic tubes, banjo pneumatic fittings, etc.Push-Lock FittingsTube OD: 04, 05, 06, 08, 10, 12, 14 mm ... tool, lathe suchas application if corrosive environment SP series. Push-Lock Fittings