Contact system and tab fit
The 63475-2 is a female quick-disconnect receptacle in TE's Faston series, accepting a 0.187" (4.75mm) wide tab with 0.020" (0.51mm) thickness. Tin-plated brass contact material mates with matching Faston male tabs; the crimp termination accepts 16-20 AWG wire with an insulation diameter range of 0.090" to 0.130" (2.29mm to 3.30mm).
Tab-width selection across the Faston family
Within the non-insulated Faston receptacle range the 63475-2's 0.187" (4.75mm) tab width sits between the 0.110" (2.79mm) of the 61158-1 and the 0.250" (6.35mm) of the 63445-1 — the tab thickness differs across siblings (0.020" vs 0.032"), so match both width and thickness to the male tab.