Amazon.com: O Ring Kit, Inch & Metric Sizes, Nitrile-70A, Rubber Seals O Rings & 4 Pieces Orings Remover Tools in a Storage Case, for Faucet, Plumbing, Automotive (Red & Yellow Case) 786
USA Sealing - O-Ring: 0.614" ID x 0.754" OD, 0.07" Thick, Dash 016, Nitrile Butadiene Rubber - 28841682 - MSC Industrial Supply
Metric Nitrile Rubber NBR O Ring Seals 2mm Cross Section 1mm-17.5mm ID - UK SUPP | eBay
10pcs Heat Oil Resistant 3.5mm NBR Nitrile O-Ring Rubber Sealing Ring OD 10-59mm | eBay