uxcell Nitrile Rubber O-Rings 5mm OD 2mm ID 1.5mm Width, Metric Sealing Gasket for Automotive Machine Plumbing, Pack of 50: Amazon.com: Industrial & Scientific
39,2X5,7 Oring 39,2mm ID X 5,7mm CS NBR Nitril Acrylnitril butadien sha 70 Schwarz O ring O ring Abdichtung o ring Gummi|ring women|rubber flashing ringsrubber squid - AliExpress
NBR O-ring 175 x 2mm (OD 179mm) 70 Shore A [5 Pieces] | Tameson.co.uk