This is a total small business set-aside solicitation for the repair of a Power Supply Backplane, designated as a DO-rated order for national defense under the Defense Priorities and Allocations System. The contractor must perform a teardown and evaluation (TD&E) within 90 days after receipt of carcasses and submit a firm-fixed-price quote for the full repair effort. The requested repair turnaround time (RTAT) for final inspection and acceptance is 200 days, and an option for increased quantity extends 365 days after award. Offerors must submit pricing for the option, identify the original equipment manufacturer if not the offeror, and provide a signed authorization letter. Repairs must comply with MIL-STD packaging and marking, electrostatic discharge control per ANSI/ESD S20.20, and strict mercury-free requirements for submarine/surface ship use.