The outer diameter (OD) of a hollow circular pipe is the measurement of the outside edges of the pipe passing through its center.
137395
RS ProReplacement Fluorescent Tube For Use With Round Magnifier / RS PRO 137395NUP2308-E-TVP3
RS ProRS PRO 40mm I.D Cylindrical Roller Bearing, 90mm O.D3206A-2RS
RS ProRS PRO Angular Contact Ball Bearing - Sealed End Type, 30mm I.D, 62mm O.D7306B
RS ProRS PRO Angular Contact Ball Bearing - Open End Type, 30mm I.D, 72mm O.D3305A-2RS
RS ProRS PRO Angular Contact Ball Bearing - Sealed End Type, 25mm I.D, 62mm O.D392292
RS ProFlame Retardant Heat Shrink Tubing 2:1 White Polyolefin 0.75/0.37in 4ft Length / RS PRO 392292131993
RS ProHSS M10 100 mm Counterbore 18mm Cutter Dia. 12.5 mm Plain Shank / RS PRO 1319936200-2RS
RS ProRS PRO Deep Groove Ball Bearing - Sealed End Type, 10mm I.D, 30mm O.D623-2RS
RS ProRS PRO Miniature Ball Bearing - Sealed End Type, 3mm I.D, 10mm O.D624-2Z
RS ProRS PRO Miniature Ball Bearing - Shielded End Type, 4mm I.D, 13mm O.D