This is a Sources Sought notice for market research on the overhaul of the CH-47 Brake, Magnetic (NSN 1680-01-120-7511), with an estimated quantity range of 5 to 180 units, including up to 30 for Foreign Military Sales. The proposed contract is a five-year, Firm-Fixed-Price Indefinite Delivery Indefinite Quantity (IDIQ) overhaul contract, requiring restoration of unserviceable assets to like-new, airworthy condition per the Depot Maintenance Work Requirement (DMWR) 1-1680-341&P. The applicable NAICS code is 336413 with a 1,250-employee size standard. Interested parties must submit company information and business size/socioeconomic status via email to the Contract Specialist by 5 June 2026. No budget amount is specified, and the location for performance of services is not mentioned.