... up of body,in O-ring,out O-ring,spacer ring, securing ring and locking spring.when a mating tube end piece inserts the connectors ... connectors are made up of body, in O-ring, out O-ring,spacer ring,securing ring and locking spring. Body: 12 with 20 - 50 ... % glass fiber content. O-ring: NBR HNBR and FVMQ Technical features Medium: gasoline , diesel ,air ...