HBL 8200H (I have 3 of them here) and HBL 8300H have always been compact hospital grades with unplated Olin 688 brass contacts.
HBL 8200/8300 (have at least 3 of those here as well) is an entirely different receptacle, a typical full sized hospital grade with Olin 688 brass nickel plated contacts.
HBL 5262/5362 (have at least 3 of those here too) have always been full sized "specification grade" receptacles with Olin 688 brass non-plated contacts.
HBL 8300GY is simply a grey 8300. If you had a grey 8300H it would be HBL 8300HGY, a white 8300 would be HBL 8300W, a white 8300H would be HBL 8300HW, etc.
There's really not much confusing about the Hubbell catalog numbers if you know one thing: the better quality receptacles all share the prefix HBL while the lower quality contractor grades from Hubbell have a CR prefix. That is what Cabledyne is referring to on their website, although they could have done a better job on it and really spelled it out. Check out the price difference doing a google search on a Hubbell HBL 5362 vs. a Hubbell CR 5362. The key is to NOT buy the CR designated Hubbells.
As far as the 8300H being "special order", the only thing special order about it is that it is typically not stocked. Go to any Hubbell retailer, ask them to order it for you and you'll have it in a week.
Hope this helps eliminate some of the confusion.
HBL 8200/8300 (have at least 3 of those here as well) is an entirely different receptacle, a typical full sized hospital grade with Olin 688 brass nickel plated contacts.
HBL 5262/5362 (have at least 3 of those here too) have always been full sized "specification grade" receptacles with Olin 688 brass non-plated contacts.
HBL 8300GY is simply a grey 8300. If you had a grey 8300H it would be HBL 8300HGY, a white 8300 would be HBL 8300W, a white 8300H would be HBL 8300HW, etc.
There's really not much confusing about the Hubbell catalog numbers if you know one thing: the better quality receptacles all share the prefix HBL while the lower quality contractor grades from Hubbell have a CR prefix. That is what Cabledyne is referring to on their website, although they could have done a better job on it and really spelled it out. Check out the price difference doing a google search on a Hubbell HBL 5362 vs. a Hubbell CR 5362. The key is to NOT buy the CR designated Hubbells.
As far as the 8300H being "special order", the only thing special order about it is that it is typically not stocked. Go to any Hubbell retailer, ask them to order it for you and you'll have it in a week.
Hope this helps eliminate some of the confusion.