The government intends to solicit and negotiate with only one source for 7 units of NSN 1H-4820-015414342-D0, with delivery to Portsmouth Naval Shipyard in Kittery, ME. All responsible sources may submit capability statements or proposals for consideration. Proposals received within 45 days of the synopsis publication will be reviewed. No specific budget amount is provided. The government retains discretion to determine whether to compete the contract based on responses.

This opportunity is for a **Special Emphasis (Level I) valve head assembly** used in a crucial shipboard system, designated as a Critical Safety Item. The contractor must manufacture the item to a specific drawing and part number, with strict requirements for oxygen cleaning, mercury-free materials, and a quality system compliant with ISO-9001. **Performance of services** is subject to Government Quality Assurance at the source, and the place of performance cannot be changed without authorization. The **delivery schedule** requires submission of all certification data 20 days prior to delivery, with final material delivery due 210 days after contract award. This is a **total small business set-aside** with a one-year warranty.