You searched for "parallel bore"
RS PRO
RS PRO Nitrile O-Ring, 10.5mm Bore, 13.5mm Outer Diameter
Part: 255-6778
Nitrile rubber O-ring seal for hydraulic and pneumatic equipment connections.
RS PRO
RS PRO Nitrile O-Ring, 10.5mm Bore, 15.5mm Outer Diameter
Part: 255-6779
Nitrile rubber o-ring for sealing hydraulic and pneumatic equipment connections.
RS PRO
RS PRO Nitrile O-Ring, 10.5mm Bore, 14.5mm Outer Diameter
Part: 255-6780
Nitrile O-ring seal for hydraulic and pneumatic systems in machinery.
RS PRO
RS PRO FKM O-Ring, 10.5mm Bore, 15.9mm Outer Diameter
Part: 255-6377
Small fluorocarbon O-ring seal for compact pumps and precision equipment.
RS PRO
RS PRO Nitrile Rubber Seal, 10.5mm ID, 18.5mm OD, 5.5mm
Part: 749-597
Small nitrile V-seal for compact hydraulic cylinders and pneumatic systems.