Amazon.com: 407 Pieces SAE Universal O-Ring Kit, Set of 32 USA Standard Sizes, Buna-N 70A, Rubber Seals O Rings, for Faucet, Professional Plumbing, Automotive | BUSY-CORNER : Automotive
o ring style and rubber NBR/nitrile/buna material NBR 70 o-ring - China O Ring, Seal | Made-in-China.com
NBR O-ring 65 x 4.5mm (OD 74mm) 70 Shore A [10 Pieces] | Tameson.com
NBR nitrile o ring - PowerRubber.com
Material - O-ring NBR 70 & 90 | Sae Flange Online
O-ring 25x2mm NBR 70 Black Ozone Resistant – Oringo