This is a U.S. Navy solicitation for a **Pressure Seal Cover** for a 5-inch check valve, designated as **SPECIAL EMPHASIS (Level I)** material for a crucial shipboard system. The contract is a **total small business set-aside** and requires the contractor to provide a quality system per ISO-9001, with extensive testing, certification, and configuration control. Performance of services is not explicitly stated, but the contracting activity is **NAVSUP WSS Mechanicsburg**. The contract will be **DO certified for national defense** under the Defense Priorities and Allocations System (DPAS). No budget amounts or submission timelines are specified.