Imprints on the rear side of this part may vary. Click the picture below to open it in a larger resolution.
Design ID 52901 is used for transparent (PC) parts. However, number 52901 can be also found imprinted on non-transparent parts (refer to the picture above).
Click on a colored part below to see the Sets and MOCs that use part 2723 Technic Disk 3 x 3 in that color. You can find an overview of all LEGO Colors here.
This part has been used by MOCs in the following colors but not officially released.