DLA seeks Inertial Navigation Units with case, NSN 6605-01-578-7163, P/N .13023681 / MFR P/N HG9740AH6, with quantities ranging from 18 to 438 EA and FOB destination. The item is restricted to approved source Honeywell Inc (CAGE 0BFA5) or an authorized distributor, and only approved sources/distributors will be considered. The solicitation will explain that drawings are inadequate to enable competitive bidding. Interested firms may contact the Competition Management Office to pursue approved-source status for future buys. The solicitation may include DLAD provision 52.215-9023 for a reverse auction; if held, contractors must register in the reverse auction system and their participating representative must complete online training.