2mm X 34mm (NBR) Buna-N 70 Duro Metric O-Ring [N2.00X034] : The O-Ring Store LLC, We make getting O-Rings easy!
Viton O-Ring - 4mm Wide x 34mm ID - Pack of 1
Telescope House - Telescope Specialist since 1785 | LUNT O-ring 34mm for Pressure-Tuner at MT & THa solar telescopes | Call 01342 837 098 for Sales and Advice
O-Ring 34mm x 3mm, made in Germany | spareparts.h-tec.us
Golden Horn "O" Ring 34mm Diameter | Beads and Pieces
28mm ID x 34mm OD x 3mm thick O-ring. Buna-70. Quan 2. | eBay