A pion exchange quark-quark force which is assumed to be general enough to include the charge dependent parts, based on the classification suggested by Henley and Miller, is invoked. With this interaction as input the nucleon-nucleon potential is derived using the properly symmetrized six-quark states for the two nucleon system. Most of the terms obtained here have the same structure as has generally been used, in the study of the charge symmetry breaking effects in {ital n}-{ital p} scattering. However, there are some new terms which essentially arise as a result of the detailed quark substructure of the nucleons considered here. In particular, we have contributions where only the isospin of the {ital n}-{ital p} system changes but the spin remains conserved. In addition, the quark exchange effect in the {ital N}-{ital N} system gives rise to terms which can be identified with the usual {rho}, {omega} exchanges at the nucleon level. These new terms may have some experimentally observable effects on the difference of {ital n}-{ital p} analyzing power, {Delta}{ital A}. It may, therefore, be worthwhile to undertake a detailed quantitative study with a comparative estimate of the individual contributions on such experimental observables. {copyright} {ital 1996 The Americanmore » Physical Society.}« less