This is a 100% small-business set-aside acquisition for 90 each of NSN 1H-6640-016544351-X3 under TDP version 006, with delivery to DLA Distribution San Joaquin in Tracy, CA. The Government lacks rights to the data needed to purchase or repair this part from additional sources and states that reverse engineering it is uneconomical. The Government intends to solicit and negotiate with only one source under FAR 6.302-1, and this notice is not a request for competitive proposals. Responsible sources may identify their interest and capability or submit proposals, quotations, or capability statements, which will be considered solely to determine whether to conduct a competitive procurement. Award requires the offeror, product/service, or manufacturer to meet applicable qualification requirements at time of award under FAR 52.209-1.