This is a sole-source procurement to United Contamination Control, Inc. for the oxygen cleaning of 450 pressure gauges. The work is required because the original manufacturer failed to provide certification that the cleaning was performed, and market research found only this vendor possesses the unique qualifications and clean-room facilities for the specific process. There is an urgent and critical need to resolve this deficiency to prevent fleet readiness impacts and the submission of high-priority casualty reports. The services will support the restoration of mission-capable underwater breathing apparatus for EOD diving operations. For questions, contact the specified email address by the stated closing date and time.