Annealed, selectively C-13-labeled Bisphenol A polycarbonate samples were uniaxially compressed (compressive strain ca. 40%). One-dimensional static NMR spectra of the deformed samples were recorded at different orientations with respect to the magnetic field. The orientational distributions of the carbonate groups and the phenylene rings were determined through a fitting of the spectra by an expansion in Wigner rotation matrix elements. The data are explained quantitatively by an affine network-deformation model. The chains qualitatively behave as compressed random coils.