The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of two units of a flight-critical bolt, identified by NSN 1R-5305-LLF02I166-P8. This procurement requires Government source approval prior to contract award, as the item is deemed commercial/nondevelopmental/off-the-shelf, and only previously approved sources will be considered for solicitation. Interested parties must submit their proposals along with the necessary source approval documentation within 45 days of this presolicitation notice, with all inquiries directed to Danielle M. Junod at (215) 697-1138 or via email at DANIELLE.M.JUNOD.CIV@US.NAVY.MIL.