MATERIALS
Plug spring fingers, center contacts:
Beryllium copper per ASTM-B-196
Crimp sleeves:
Seamless copper tube per ASTM-B-75
Other metal parts:
Brass per ASTM-B-16, Alloy 360, ½hard
Insulators:
Teflon(TFE) per ASTM-D-1710
PLATINGS
Center contacts:
Gold plated
Other metal parts
Gold plated