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.

• 3680c02 Turntable 2 x 2 Plate, Light Bluish Gray Top [Complete Assembly] this part is a sub-part of it
• 251 Turntable 2 x 2 Plate with Hinge, Base [3 Fingers] this part is a pair of it
• 3680 Turntable 2 x 2 Plate, Base this part is a pair of it