Presolicitation notice from the Department of Defense, Department of the Navy, is seeking services for the repair/modification of an inertial system navigation. This navigational instrument, identified by NSN 7R-6605-013988561-YX and TDP VER 001, is required in a quantity of 35 EA. The delivery will be FOB origin. For more information, contact PETER A. KOBRYN at N761.17, phone (215)697-4313, or email PETER.KOBRYN@NAVY.MIL.