The Department of Defense, through the Defense Logistics Agency (DLA) Aviation at Philadelphia, PA, is seeking proposals for the procurement of 40 units of an optical module, identified by NSN 7R-7050-016816838-BL and reference number 278A092-6. This procurement requires engineering source approval due to the flight-critical nature of the item, necessitating that only previously approved sources may submit proposals, as new sources must undergo a qualification process that cannot delay the award. The selected supplier will be responsible for ensuring the quality of the part, which is essential for maintaining operational capabilities, and must provide all necessary documentation as outlined in the NAVSUP Weapon Systems Support Source Approval Information Brochures. Interested parties should contact Michael W. Bauder at (215) 737-5103 or via email at MICHAEL.BAUDER@DLA.MIL for further details and to ensure compliance with submission requirements.