Award is for year one of a six year requirements contract for spares and repairs of various NSNs related to the Joint Helmet Mounted Cuing System (JHMCS). A fixed-price contract, sole source to above ... Award is for year one of a six year requirements contract for spares and repairs of various NSNs related to the Joint Helmet Mounted Cuing System (JHMCS). A fixed-price contract, sole source to above stated contract under the authority also stated herein.