The model 1234-00 is a great option to upgrade or replace the nut on your Ukulele

It is available in TUSQ and NuBone XB formulations.

Measurements    
Length:  1.381”  /  35.08mm
Width:  0.196”  /  4.98mm
Height:  0.236”  /  6.0mm
String Spacing:  1.071”  /  27.2mm