The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support Mechanical, is seeking to procure 101 units of self-locking nuts under the title '53--NUT,SELF-LOCKING,HE'. This procurement involves a specific National Stock Number (NSN 1H-5310-016416470-D4) and is intended to be negotiated with a single source, as outlined under FAR 6.302-1, indicating the specialized nature of the required supplies. The goods are critical for military applications, emphasizing the importance of reliability and performance in defense operations. Interested vendors are encouraged to express their interest and capability within 45 days of this notice, with proposals being accepted for consideration, although this is not a request for competitive proposals. For further inquiries, potential bidders can contact Noelle M. Smith at (717) 605-3992 or via email at Noelle.M.Smith10.CIV@us.navy.mil.