KTM part 61007089000 - O-RING SET FOR FUEL PUMP 05
KTM part 58507012000 - O-RING VITON F. PLUGCPC part 731104 - AS568-011 FKM (Viton®) O-Ring (LC, PLC, PLC12, APC, TwinTube, NS4, NS406,BreakAway)
Gas- and watertightDiameter 4.8mm length 9.5mm (image not in scale)