You searched for "parallel bore"
RS PRO
RS PRO EPDM O-Ring, 2mm Bore, 5mm Outer Diameter
Part: 258-7496
Tiny rubber O-Ring seal for small precision equipment and connections.
RS PRO
RS PRO FKM O-Ring, 2mm Bore, 5mm Outer Diameter
Part: 255-6376
Tiny precision FKM O-ring for small instruments and miniature equipment.
RS PRO
RS PRO Round Brass Spacer 5mm
Part: 224-0370
Small brass spacer with nickel plating for M2 electrical connections.
RS PRO
RS PRO S692ZZ Single Row Deep Groove Ball Bearing- Both Sides Shielded 2mm I.D, 6mm O.D
Part: 234-6939
Smallest shielded stainless steel bearing for micro precision machinery.
RS PRO
RS PRO Round Brass Spacer 10mm
Part: 224-0366
Small brass spacer with nickel plating for M2 fasteners.