The Portsmouth Naval Shipyard is seeking small businesses capable of providing calibration and repair services for Precision Pressure Standard, Model 3689A equipment, with services performed at the vendor’s facility. This is a market research notice only, not a solicitation, and no contract will be awarded based on responses. The base period of performance is June 24, 2026, through June 23, 2027, with two optional one-year extensions. No budget amount is specified. Interested parties must confirm intent to quote and submit a capabilities statement by the specified deadline.