RG400
http://www.bandc.aero/rg400coaxialcable1-49feet.aspx
The RG-400 is sold by the foot. To purchase 50 feet or more use the product number of RG400/50. This is the product of choice for antenna feedlines in modern aircraft. This is equal in performance to often recommended RG-142. RG-142 has a solid center conductor while the the center conductor of RG-400 is stranded with an insulation layer of teflon. The outer conductor is TWO layers of silver plated copper braid. This coax directly replaces the legacy RG-58 product. PVC and polyethelyene used on RG-58 are WWII era insulations and no longer permitted on new certified aircraft. Qualified to MIL-C-17/128-RG400.
RG174- thin black for PMT signal cable
https://www.pasternack.com/50-ohm-low-loss-lszhjacket-aluminumtape-over-tinnedcopperbraid-outerconductor-double-shieldedpe-c100-lszh-p.aspx