This David Clark Volume control Knob is new. It fits most David Clark Headsets and many others.

It fits a 1/8" shaft

It has a .050 allen set screw

12mm X 12mm  Top spun aluminum inlay


See my Headsets and parts that I have for sale at my eBay Store   http://stores.ebay.com/KC-Headsets

About KC Headsets

KC Headsets is a pilot-owned and family operated aviation Headset Repair station and retailer based in the Kansas City Missouri area. We focus on bringing affordable repair services, aviation headsets and accessories to the aviation community. Visit our website to learn more.