Universal Power 4-Position Plug Housing — Contacts Not Included
The 178481-1: The 0.156" (3.96mm) pitch is the standard power-class spacing — wide enough to handle 18-20 AWG power circuits without crowding the wire bundle. The latch lock fastening provides positive retention under vibration without requiring tools for unmating, which is a practical advantage in field-service or harness-assembly environments where screw-locks slow down the swap.
Active Lifecycle — No Obsolescence Watch
There is no end-of-life notice, no last-time-buy date, and no official successor part number. For procurement planning, this means the housing can be specified into a multi-year build without an obsolescence-driven redesign.
Mating and Termination — What Fits
As a plug housing with female socket contacts, the 178481-1 mates with the matching Universal Power header (male pin header, typically right-angle or vertical through-hole, same 0.156" pitch and 4-position count). The PA66 housing provides the insulation and strain-relief envelope; the wire gauge range is determined by the terminal barrel size, typically 18-22 AWG for this pitch class.