The Department of Defense, through the NAVSUP Weapon Systems Support office, is seeking to procure a sole source item known as "AFT FOAM" from Sikorsky, identified by part number 06801-06006-124 and NSN 1R-1650-016672244-H5, with a quantity of one unit required. This procurement is critical for maintaining aircraft hydraulic, vacuum, and de-icing system components, underscoring the importance of this item in ensuring operational readiness and safety. Interested parties are invited to submit capability statements or proposals within 45 days of this notice, although the government intends to negotiate exclusively with Sikorsky due to the lack of available data for alternative sources. For further inquiries, contact Kate N. Schalck at (215) 697-1020 or via email at kate.n.schalck.civ@us.navy.mil.