This is a total small business set-aside procurement for a TEST SET, ANTENNA, issued under FAR Part 12 commercial procedures, with evaluation on a Lowest Price Technically Acceptable (LPTA) basis. The item must be manufactured to the original equipment manufacturer's design (Cage 0T1F7, ref. S820E-NV), and no drawings or technical data are available. Offerors must be authorized distributors of the original manufacturer and must provide proof of authorization with their quote, along with their CAGE code and part number if they are not the manufacturer. The contract requires a government-accepted quality system per ISO-9001 (with MIL-I-45208 acceptable), inspection and acceptance at source, compliance with MIL-STD-129 marking, and mercury-free material suitable for submarine/surface ship use. Additional requirements include electronic invoicing through PIEE-WAWF, standard packaging per MIL-STD 2073, and a prohibition on changing production facilities without prior Contracting Officer approval.