This requirement is for the buy effort for the Radio Frequency (RF) Switch NSN 5985-01-512-9801EW, in specific to Part Numbers 312827-102 and/or 312827-402, in support of the AN/ALR-56M Advanced Radar Warning Receiver (ARWR). The RF Switch is a component within Line Replacement Unit 7 (LRU-7), 5865-01-324-7734EW, the Super Heterodyne Receiver (SHR) within the AN/ALR-56M Weapon System. The RF Switch and LRU-7 are both significant components/units of the AN/ALR-56M Weapon System, installed on the F-16 Blocks C/D and C-130J aircrafts.This effort will result in a five-year Requirements Type Contract with a 12- month Basic ordering period, and four twelve-month ordering periods. The Government does own the Source Controlled Drawings (SCDs) butdoes not own, or have unlimited rights to the complete technical data package (TDP) for this NSN. The Government does not own purpose rights nor limited rights the TDP. Furthermore, the Government does not possess the detailed engineering information that would enable a new vendor to successfully develop a parts list and testing methodology for the production of these items.