Overall Diaphragm Diameter: 5" (127mm)

Voice Coil Diameter:  3.91" (127mm)
Diaphragm Thickness:0.05mm
Diaphragm Height:18.4mm

Here is a list of the driver part #'s:
2446J, 2447J, 2450J, 2451J, 2452J (will not fit this model with spring terminals) and more.