Blue insulated male tab, 0.250" width
The 2-1377175-4 is a male quick-disconnect tab from the TE Faston, PIDG series, insulated on the non-mating end with a blue sleeve. It accepts 13-17 AWG wire, crimps to the conductor, and carries a tin-plated brass contact rated for the standard 0.250" (6.35mm) tab interface.
Series tab width and wire range contrast
The Utilux-series peers 1-1659250-0 and 1-1627194-4 are non-insulated female receptacles with a 0.248" to 0.250" tab width for 15-20 AWG wire — the 2-1377175-4's insulated male tab serves a different wiring point in the harness.
