The Department of Defense, specifically the Department of the Navy, is soliciting bids for the procurement of self-locking nuts, designated as "NUT, SELF-LOCKING, HE," through NAVSUP Weapon Systems Support Mechanical. This contract requires the delivery of 1,500 units of heavy hex self-locking nuts, which are critical components in shipboard systems, necessitating strict adherence to quality and certification standards to prevent failures that could lead to serious safety risks. Interested vendors must ensure compliance with various specifications and quality assurance requirements, including First Article Testing, and are encouraged to submit their proposals by contacting Francine A. Pomells at 717-605-3354 or via email at francine.a.pommells.civ@us.navy.mil. The contract is set for a delivery timeline of 365 days from the award date, with a variation in quantity of -5% allowed.