Flag-style Faston receptacle
The 1742543-1 is a non-insulated female flag terminal from the TE Faston series, accepting 16-18 AWG wire via a crimp barrel. The nickel-plated steel contact carries a 0.250" (6.35mm) tab width and 0.032" (0.81mm) tab thickness — the flag orientation routes the wire 90° from the tab axis, keeping the crimp body clear of adjacent terminals in a multi-position block.
Same-width peers in the catalog
The 1742543-1 shares its 0.250" tab width and non-insulated crimp body with the Utilux-series 1-1627194-4 (15-18 AWG, brass) and the 1-1659250-0 (17-20 AWG, tin-plated brass). The 1742543-1 uses steel for the contact base — steel carries higher pull-out force at the expense of corrosion resistance versus the brass peers. The PIDG-insulated 1377175-8 (Fastin-Faston series) uses a 0.312" tab and a pre-insulated sleeve, so it does not share the same tab width or wire range.