The Department of Defense, through the NAVSUP Weapon Systems Support office, is seeking to procure repair services for four H-60 spindle assemblies on a sole source basis from Sikorsky. This procurement, classified under the NAICS code 336413, involves the repair of a specific National Stock Number (NSN): 7R1615012382444, and is critical for maintaining operational readiness of the H-60 aircraft. Interested parties are invited to submit capability statements or proposals within five days of the publication of this presolicitation notice, with the solicitation expected to be issued on December 23, 2025, and responses due by January 22, 2026. For further inquiries, interested vendors may contact Taylor O’Connor at taylor.m.oconnor2.civ@us.navy.mil or by phone at 215-698-2198.