Crimp socket for SL-156 housings
The 640707-1 is a tin-plated crimp socket from the TE Connectivity SL-156 series, accepting 18-24 AWG wire with a crimp termination.
Wire gauge and termination fit
The 640707-1 accepts 18-24 AWG wire, while the sibling 929989-8 accepts 17-20 AWG and the 1-1326032-0 accepts 16 AWG — select the socket that matches the wire size in the harness.
