RG-316 Coaxial RF Cable Assemblies Crystek Crytals offers Coaxial RF Cable Assemblies, RG-316 double-shielded, that feature adhesive shrink tubing over the crimp area for strain relief, a center conductor composed of silver-plated copper (SPC), and double-braid shielding of SPC(2). The Crystek Crystals RF Cable Assemblies are insulated with an PTFE dielectric and jacketed with FEP, as well as being RoHS compliant. For electrical characteristics, see datasheet.