Ideal Vacuum | ASA 2 Inch Fixed Bored Flange, with O-Ring Groove, Not Rotatable, 6 in OD, 4.75 in BCD, 0.75 in Hole Diameter, 4 holes, 304 Stainless Steel
How to properly choose commercially available o-rings
6 Pack White Gasket Rubber Sealing O-Ring Replacement Part for Nutri Ninja Auto-iQ
RT6 60" - 72" O-Ring Inside Diameter Inch
ZMSCV70437 : WorkSmart #437, 6 Inch Inside x 6-1/2 Inch Outside Diameter, Viton O-Ring, 2 Qty/EA
O-Ring Tapes, O-Ring Tape for measuring the inside diameters of o-rings and other soft walled parts, manufactured by Pi Tape Corporation - Newman Tools
6 3/4'' Diameter -440 Chemical-Resistant High-Temperature O-Rings (1 EA per Pack) - Walmart.com