The Department of Defense, through the Defense Logistics Agency (DLA) Aviation at Philadelphia, PA, is seeking proposals for the procurement of 173 units of a flight-critical accumulator, part number 901-380-501-103, under the presolicitation notice. This item is classified under the PSC code 2530, which pertains to vehicular brake, steering, axle, wheel, and track components, and requires government source approval prior to contract award due to the lack of available technical data for alternative sources. Interested vendors must provide comprehensive documentation as outlined in the NAVSUP Weapon Systems Support Source Approval Information Brochures, and proposals must be submitted with all required data to be considered for award. For further inquiries, Rachel Raucheisen can be contacted at (215) 737-7063 or via email at RACHEL.RAUCHEISEN@DLA.MIL.