The Department of Defense, through the Defense Health Agency, intends to award a sole source Firm-Fixed-Price contract to Advanced Instruments, LLC for a Service and Maintenance Plan for two A2O Osmometers at the Naval Medical Center Portsmouth. This procurement aims to secure annual on-site preventative maintenance, corrective repairs, unlimited phone support, and loaner instruments, ensuring the operational readiness of critical medical equipment. The total estimated value of the contract is $77,000, covering a base year from February 1, 2025, to January 31, 2026, with four additional option years. Interested parties may submit evidence of their capability to compete by contacting Contract Specialist Lisa Wilk at lisa.c.wilk.civ@health.mil, although the government will not be responsible for any costs incurred in response to this notice.