DLA seeks quantity 4 of NSN 1H-5950-002761331-X3 (TDP VER 003), delivered to New Cumberland, PA, and Tracy, CA. The part requires engineering source approval by the design control activity; approved sources retain essential data/knowledge, and alternate sources must qualify under approved procedures. The acquisition is 100% set aside for small business concerns, with the specific set-aside type identified in the solicitation. Award requires meeting qualification requirements at time of award under FAR 52.209-1. The Government is not using FAR Part 12 commercial-item procedures, but interested parties may identify commercial-item interest and capability to the contracting officer within 15 days of the notice.