The 179631-1 is a 16-position plug housing for AMP diagnostic connector systems. This component is constructed from white PBT (Polybutylene terephthalate) and is designed to house receptacle contacts for creating a secure connection. Key physical characteristics include a 4.0mm pitch and overall dimensions of approximately 44.9mm in length and 26.2mm in width. It is intended for use in diagnostic applications where a robust and reliable multi-pin connection is required.