Sole source procurement anticipated for Kaman Aerospace Corp as the OEM and only known source for 26 each of the Interface Unit, Data (NSN 7025-014833252), with delivery FOB origin. No drawings or data are available, and the government does not own the rights to purchase from other sources. Firms not already approved must submit a Source Approval Request, but the procurement will not be delayed for SAR approval. The acquisition will be conducted under FAR Part 13 procedures and is not a small business set-aside. Interest and capability statements may be considered, but no commercial item policies will be used.