I don't think "consumable parts" is a correct term.
The shim assembly shown in your photo is identical to that fitted to a number of
Manfrotto 190-series CF tripods.
The shims, regrettably made of plastic rather than more robust material like stainless steel, are readily replaceable in the event of breakage caused by slippage or loosening of the leg clasps that will permit the shims to slip around and eventually break. In this case I suspect a small amount of loosening of the leg locks (clasps) has allowed the legs to over-extend and cause the shims to fracture; when you went to use the tripod, the shim broke: this is exactly what happened with my Manfrotto tripod in 2015. As security for being able to continue working on-loc, I carry 2 sets of spare shims in my kit for in-field repairs, plus a hex key.
Bits and pieces of tripods will over time necessarily require replacements: e.g. steel screws are a much hated feature on Manfrotto tripods, readily replaced with marine-grade stainless steel hex screws and nylon-cored nuts. Twist leg locks can seize while flip-locks require inspection before important work to ensure they are clamping extended legs without evidence of slow-slip.
I am surprised your warranty communication with Novo didn't turn out satisfactory. Was this done through the dealer where the tripod was purchased, or directly with Novo?
---------- Post added 10th Sep 2020 at 08:08 PM ----------
Originally posted by Bob 256 Bottom line is that you and others have learned something. If I were you, I would settle this as best you can, and then don't buy their product again. I too can attest to the quality of Manfrotto - I didn't pay that much for mine and have been more than satisfied with its performance.
It will always be true that improvements can be found and be made to most of the Manfrotto tripods. Having said that, I've used them for almost 40 years now, just 3 over that time.