AO-5042 3mm O-Ring Black 10pcs [Tamiya 4950344841950] - ¥88
3mm ID x 1.5mm C/S Viton O Ring. 3x1.5. Choose Quantity. New. Metric. | eBay
138X3 Oring 138mm ID X 3mm CS NBR Nitrile Acrylonitrile Butadiene IRHD 70 Black O ring Oring Sealing O ring Rubber|rubber keypad|rubber seal ringrubber jewelry rings - AliExpress