Imperial Code Disk

Greeblie Diagram and Dimensions
Width (mm)Height (mm)
Top9.201.38
Middle (Inner)16.53
Middle (Outer)18.442.80
Lower (Inner)22.19
Lower (Outer)23.723.49

The TIE Pilot Ear Greeblie is a Mitchel Transcriptor Hydraulic turntable pulley wheel

Mitchel Turntable Showing Pulley Wheel used as Imperial Greeblie
Reference Hydraulic Transcriptor Turntable by J.A.Michell Eng. Ltd.
Reference Hydraulic Transcriptor Turntable by J.A.Michell Eng. Ltd.
Reference Hydraulic Transcriptor Turntable by J.A.Michell Eng. Ltd.
Reference Hydraulic Transcriptor Turntable by J.A.Michell Eng. Ltd.
Lower Disk Outer dimension 23.72mm
Lower Disk Inner Dimension 22.19mm
Middle Disk Outer Dimension 18.44mm
Middle Disk Inner Dimension 16.53mm
Upper Disk Dimension 9.20mm (n.b. this has no groove unlike the lower and middle disk)
Height All three disk 7.67mm
Height Lower two Disks 6.29mm
Height Lower Disk 3.49mm
Hole 3.98mm