The U.S. Coast Guard seeks a firm-fixed-price service contract for on-site replacement of eight port locking pin sensors on USCGC CALHOUN in Alameda, CA. This opportunity is a 100% small business set-aside under NAICS 334419 (750-employee size standard). Award will be based on a pass/fail evaluation of technical capability and past performance, with the lowest-priced technically acceptable quote winning. Quotations must demonstrate clear understanding of the Statement of Work and provide relevant past performance within the last three years. No budget amount or performance timelines are specified in the notice.