Ab initio electronic-structure calculations for the normal metallic state of U(2)T(2)X (T = Co, Ni, Rh, Pd, Ir, Pt; X = In, Sn) compounds were performed using a fully relativistic optimized LCAO method based on the local density approximation. The particular electronic structure and related properties originate from the interplay between the band filling of T atom d-states and hybridization between T atom d-states and U atom f-states.