Summary

This is a replacement base plastic piece for the Butane Torch Lighter sold at Bed Bath & Beyond.

https://www.bedbathandbeyond.com/store/product/bonjour-chef-s-tools-butane-culinary-creme-brulee-torch/1013057451?keyword=butane

This is the second part of this lighter I have replaced. See https://www.thingiverse.com/thing:5551698 for the flame adjustment