A little spacer and tightener for a hex nut on a RSMA/SMA antenna connector. Allows a hex nut to be hand tightened while providing an end-stop for the antenna.
Here I'm using it specifically in my MJX Bugs 3 transmitter, where I've replaced the stock antenna with a pigtail extension and external antenna.
Height: 4.7 mm
STEP file provided for editing!