The Air Force requires a depot-level re-manufacturing service for the C-5 MLG Trunnion Bearing, a large spherical bearing used in landing gear retraction. This five-year Requirements Type Contract includes a one-year base period and four one-year ordering periods. The estimated quantity is 64 units per year for each period. Performance location is not specified, and no budget amount is provided. Offerors must be on the government's pre-approved qualified source list to be eligible for award.