Treadwell Corp., Thomaston, Connecticut, is awarded $7,648,000 for a firm-fixed-price, undefinitized contract for the repair of sixty-four electrolytic cells that are used to produce oxygen in the operating systems in support of Los Angeles-class submarines. All work will be performed in Thomaston, Connecticut. There are no options, and work will be completed by August 2026. Annual working capital (Navy) funds in the amount of $3,747,520 will be obligated at the time of award, and funds will not expire at the end of the current fiscal year. One company was solicited for this sole-source requirement with one offer received. Naval Supply Systems Command Weapon Systems Support, Mechanicsburg, Pennsylvania, is the contracting activity (N00104-24-F-VW08).