For those looking to turn these parts from round stock, 5053/5052 is difficult to source in round stock. Wrought (NOT cast) 6061 is also acceptable. More detail below:
I've had a further conversation with our client on this job. They're purpose for 5052/5053 was to select a low-outgasing grade...
Looking for a second supplier for 2, high volume aluminum rings ~1" OD. Looking for turning or stamping quotes. Last years quantities were 70k of each part. Similar parts will likely be given to chosen vendor in the future.
Material: Aluminum 5053, Vendor Supplied
Finish: Anodize, Flat Black...