The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking to procure two units of the DTSK, Aircraft Materiel, under a presolicitation notice. This procurement involves the repair and modification of a specific item identified by NSN 7R-1680-015817912-CC, with a part number of 37900-501-2012, and will be negotiated with only one source as per FAR 6.302-1. The goods are critical for maintaining operational readiness of aircraft systems, and interested parties are encouraged to submit their capabilities or proposals within 45 days of the notice publication. For further inquiries, Tara B. Kupperstein can be contacted at (215) 697-3608 or via email at TARA.B.KUPPERSTEIN.CIV@US.NAVY.MIL.