Several sets of M520 and M540 pedals.
Given the lack of moving parts, and further lack of new bikes to put them on, I’ve got a couple of sets of KCNC titanium QR’s that have moved form bike to bike to bike, and will probably never die.
I put a 1/8th steel 44t chainring on my fixed-gear commuter last winter, I don’t think it’s practicable to do enough miles to wear it out!
I think my time pedals are likely to outlive the human race…
Oddly I killed every pair I had fairly quickly, the only thing that lasted less time were:
a) Time cleats
b) eggbeaters (and their cleats)