The Department of Defense, through the Defense Logistics Agency (DLA) Aviation at Philadelphia, PA, is soliciting proposals for the procurement of valve assemblies for aircraft, specifically under the NAICS code 336413. The contract requires suppliers to provide newly manufactured parts that meet stringent quality and certification standards, including FAA certification and compliance with various Defense Federal Acquisition Regulation Supplement (DFARS) clauses. These valve assemblies are critical components for aircraft systems, ensuring operational safety and efficiency. Interested vendors must submit their proposals electronically to Alana Arthur at ALANA.ARTHUR@DLA.MIL, with the understanding that only offers from government-approved sources will be considered. The solicitation emphasizes the importance of compliance with specific quality requirements and the prohibition of refurbished or remanufactured materials.