Jupiter Tuba, Finger Button for JCB-584, Smooth Nickel 25mm

OEM Jupiter finger button, JCB-584 tuba, P/N 42-P0401N.  Smooth sided nickel with pearl, 8-32 threads.  See my item ID# 16242 for a common Sousaphone & other Tubas.  Contact me if you wish to verify your model's fit or you need other parts.