Contact system and wire range
The 1123343-1 is the tin-plated socket member of TE's Multi-Lock crimp contact line, accepting 20-24 AWG wire with a crimp termination.
Sibling contacts in the Multi-Lock line
Within the Multi-Lock series the 1123343-1's 20-24 AWG socket sits alongside the 1-1326032-0, a 16 AWG socket with 31.5 µin (0.80 µm) tin plating, and the 929989-8, a 17-20 AWG socket — the wire-gauge range is the axis that selects the contact for the harness build.