Amazon.com: JINLI-CASE Seals CS1mm Silicone O Ring OD 37/38/40/42/45/47x1 mm O-Ring VMQ Gasket Seal Thickness 1mm ORing Red Rubber 100PCS (Size : OD47x1mm Red) : Industrial & Scientific
614 Scuba O-Rings NBR Sh90 for DIN & YOKE - Din O-Rings
Part Number D-2045-FMOL, 31.8 mm Hose ID Size and M45x2 F Thread Size (mmxTPmm) Metric Swivel Female O-Ring 24º Seat Din. 3865 - Light On Kuriyama of America, Inc.