This opportunity is for the procurement of 20 Generator, Direct Cu spares (plus a production surge lot) for the KC-135 aircraft, with delivery to Tinker AFB, OK. The required delivery schedule for the 20 units is phased across five months, beginning January 1, 2027, and ending May 1, 2027. Performance of services is at Tinker Air Force Base, Oklahoma. The government intends to solicit and negotiate with only a limited number of sources, and the contractor must be an approved source as the government does not own the data rights. No budget amount is specified in the description.