Help identifying seal/gasket

I need to identify the seal/gasket shown below so I can order a replacement. I can measure the OD, ID and Height, but I’m not sure what to call it to narrow down my search.

What type of seal is this? What are the parameters I should be searching for?

I don’t need an exact match, but something close, as the use is very low-pressure.

It is used in a food-safe context with 100C water at near atmospheric pressure. There is no lubrication and is meant to be washed with food-safe detergents.

The seal has a flat side on the “bottom” that sits against a screw cap. The “top” side of the seal has two small lips that create the seal when the cap is screwed on. The inner diameter is flat and meets the bottom profile at a right angle.

The seal does not sit in a groove or channel in the cap, but just stretches around the OD of the threads and sits on a flat surface.

The seal has an OD of 63mm, an ID of 59mm and a height of 2mm. –These are my best attempt at measuring this as I am unsure how to properly measure a seal like this.

EDIT: Add OD, ID, Height

Top side

Lip Profile of Top Side

Bottom Side

Inner Diameter face