The estimated solicitation issue date is 23 Oct 2026, with an anticipated award about 90 days after issuance and required delivery on or before 9 Jan 2030. The requirement is for spare Cylinder Assemblies (NSN 1680008951058RK, PN 5-89525-6) for the KC-135, quantity 34 each with a range of 9–51. The item is an aluminum/steel air-oil cushioned mechanism used to absorb linear impact shock loads related to KC-135/KC-46 refueling boom, and the destination is ship to SW3211. Qualified sources are The Boeing Company and Downey Manufacturing Inc.; this acquisition will not be set aside, surplus is not authorized, and the Government does not own the manufacturing data/rights, so interested firms should contact the OEM. The solicitation will be available electronically only at SAM.gov, and foreign-owned firms should contact the contracting officer/program manager regarding possible restrictions.