This RFP is for a one-time firm-fixed-price definite quantity purchase order under FAR Part 15, solicited as other than full and open competition. The item is a Cell Assembly for an Optical Instrument, NSN 6650-01-676-1468, with a quantity of 80. Approved part numbers are 6439506-1 and 6439506, with approved sources DRS Network & Imaging Systems LLC and Raytheon Company. The statutory authority for the non-competitive procurement is 10 U.S.C. 3204(a)(1), implemented by FAR 6.302-1. No budget, performance location, or delivery timelines are specified.