barrel gasketTube gasketsRound sealing rings made of elastic synthetic rubber (black) for tubes. Contents 10 pieces per variety. Subgroups O-Ring round nameshapeoutside-Øinside diameterthicknessitem No.Size 960Round2.501.500.50015960Size 963Round2.801.400.70015963Size 968Round2.801.400.70015968Size 961Round3.001.500.75015961Size 962Round3.201.700.75015962Size 966Round3.301.700.80015966 O-Ring flat nameshapeoutside-Øinside diameterthicknessitem No.Size 971Flat3.402.400.30015971Size 972Flat3.651.800.30015972Size 973Flat3.502.500.30015973Size 974Flat4.002.800.35015974