The ornamental design for an electrical connector part, as shown and described.
FIG. 1 is a front elevational view of an electrical connector part showing our new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is an enlarged sectional view thereof taken along line 7-7 in FIG. 5.
The broken lines are shown for environmental purposes only and depict portions of the electrical connector part that form no part of claimed design, and the dash-dot lines represent boundaries of the claimed design.