The chiral-odd and time reversal-odd transverse momentum dependent (TMD) parton distribution h⊥1 , the so-called Boer-Mulders function, is calculated in the diquark spectator model for both an active up- And down-quark. In particular the signs of h⊥(u)1 and h ⊥(d)1 are of interest as they were predicted in other works, and the result of this analysis is consistent with these predictions. Both avors of the Boer-Mulders function contribute to observables such as the azimuthal cos(2φ) asymmetry in semi-inclusive DIS. Using the results of this analysis for h ⊥(u)1 and h ⊥(d)1 and recent calculations of the Collins fragmentation function in a similar spectator model, phenomenological predictions for the cos(2φ) asymmetry are presented. In addition, the chiral-odd but time-reversal even TMD h⊥1L is computed in the diquark spectator model, and is used to present predictions for the sin(2φ) single-spin asymmetry for a longitudinally polarized target in SIDIS.