Brick 2 x 2 Arm Holder Upper Part with Hole
Part Number 793
Name Brick 2 x 2 Arm Holder Upper Part with Hole
Category Hinges, Arms and Turntables
Material Plastic
4 related parts (same mold or print family)

Variants of a mold are catalogued separately, so each one has its own sets and minifigs. Check these too if something you expect is missing here.