SMT quick connector ring with flange

The MR2 Spyder SMT system uses three hydraulic hoses, each with a "quick disconnect" fitting. The fitting has a soft white nylon ring that is used to release the internal latches. The nylon ring gets beat up and/or lost. This 3D printed ring will allow you to open the connector without any tools. However it must be installed while the connector is open (disconnected). (The added flange makes it too stiff to install after the connector is assembled.) The HPU doesn't get particularly hot, but I would print it using some heat resistant filament. I think PETG or ASA will work fine.