This is a sources sought notice for market research, not a solicitation, to identify potential contractors for manufacturing A-10 rotor disk brake and stator disk items. The government does not own the data rights, so interested parties must demonstrate they have or can obtain the proprietary technical data from the specified data owners. The proposed NAICS code is 336413 with a size standard of 1,250 employees, and both small and large businesses are encouraged to respond. The government will use the responses to determine its acquisition strategy, but this notice does not constitute a commitment to a procurement.