Sometimes you’re not looking for the right part, you’re just looking for something good enough. If you take the Scavenging feat, you can search any area for Scrap, a generic item that can later be used for practically anything. Scrap is intentionally nondescript as it could be turned into potentially anything useful with the right feats and skill checks.
Weight: 3 lbs
When looking for Scrap, you roll a scavenging skill check. The skill check DC is based on the difficulty of finding Scrap in the area you are in. You can then use feats and/or craft checks to turn the Scrap into any item you need at the time, and doing so takes 1 hour and requires basic tools.