Cable connector with strain relief

In a connector backshell assembly for strain relief mounting to an electrical cable, including a backshell having forward and rearward ends and an axially extending cable-receiving aperture therethrough, a toroidally configured radially compressible strain relief coil spring for surrounding the cable and disposed near the rearward end of the backshell, and compression means engageable with the backshell for selective rotational and axial movement relative thereto, the compression means including a forwardly facing concave cam surface for engaging and radially compressing the coil spring into strain relief engagement with the cable, wherein the improvement comprises interference means operatively associated with the backshell and non-rotatably engageable with the strain relief coil spring to prevent rotation of the coil spring with the rotatable compression means relative to the backshell,

• said interference means including axially facing seriations for non-rotatably engaging the coil spring.