SL-156 series receptacle style wire to board housings made from UL94V-0 rated white nylon designed to mate with 1.14mm square or round post headers or staked posts on .156 centres (see MTA-156 flat, polarized and friction lock headers and staked posts). These SL-156 series housings are end to end stackable, accept a wire size range of 18 to 24 AWG and are available with locking ramp mating retention and polarizing tabs.
Part numbers X-640250-X have a locking ramp
Part numbers X-770849-X have both locking ramp and polarizing tabs
For crimp contacts for these 3.96mm SL-156 series housings see stock number 680-1792 typically.