Metric Silicone Seal O Rings O-Rings O ring-3~86mm ID X 1~2mm CS Food Grade 200℃ | eBay
O Rings AS568 226Buna N 70 Rubber gasekt OR ID x CS mm Metric sizes ORing Nitrile (NBR) 70 oring 50.39x3.53|ore ore|rubber oringoring rubber - AliExpress
O-Ring Size Chart for U.S. & Metric Standard Sizes
Standard Size Charts for Quad-Ring® Seals and X-Ring Seals
X-Rings and Quad-Rings® | Marco Rubber & Plastics | Custom O-Rings Supplier