The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking procurement for the repair and modification of navigation sets. The requirement includes 10 units of the navigation set, identified by NSN 7R-6605-017169299-H5 and reference number 311898-11-0800-121-1-USASD, with delivery terms set to FOB Origin. These navigational instruments are critical for ensuring operational effectiveness in various defense applications. Interested vendors should reach out to Peter A. Kobryn at (215) 697-4313 or via email at PETER.KOBRYN@NAVY.MIL for further details regarding this presolicitation opportunity.