This research aims to investigate the density and flexural strength of nanostructured spinel parts fabricated using the low-pressure injection molding (LPIM) method. For this purpose, firstly, the effect of the amount of binder was tested on the rheology behavior of the feedstocks containing spinel nanopowder for producing ceramic parts using the LPIM method. The rheometric analysis indicated that the feedstocks containing 80 wt% powder and 20 wt% binders showed shear-thinning fluid behavior and were chosen as the optimal low-viscosity feedstocks for the LPIM process. After binder removal from LPIMed part, secondly, the effect of sintering temperature was examined on the relative density and flexural strength of the spinel parts. The results indicated that by increasing sintering temperature from 1550 °C to 1700 °C, the size of pores was reduced and grain size was increased from 2 μm to 6 μm. Furthermore, the flexural strength of the parts sintered at 1700 °C was 10 MPa greater than that of the sample sintered at 1650 °C.