BUSY-CORNER 382 Pieces FKM O Ring Kit, Fluorocarbon 75A, 30 Inch Sizes, Chemical Resistant and Oil Resistance O-Rings for Various Chemicals, Hydraulic, Cylinders, Plumbing (Yellow Box, Brown Orings): Amazon.com: Industrial & Scientific
FKM O-ring 6.07 x 1.78mm Minimum 50 pcs - OringsandMore
O-Rings from special materials : O-ring fluoroelastomer (FKM) O.D.27-0.52, C.S.3 mm (OC 0001-050.19)