SEALING RING FOR EFCO - OLEO-MAC CHAINSAW DRIVE SHAFT MODELS: 138, 141, 142, 146, 151, 199 8420, 8425, 8460, 8465, 8510, 8510 8515, 8530, 8535, 8550 BOSS, AT 800 AT 2050, AT 2080, AT 2090, C 19/20, IC 2050 IC 2080, PA 1050, SO 5300 Ergo, SO 5500 Ergo TR 1551, TR 1581 R, TT 160 MEASUREMENTS: OUTER DIAMETER: 30. 2 mm INTERNAL DIAMETER: 14 mm WIDTH h: 6 mm CODE: 40271933 ORIGINAL CODE: 3050015AR MP