The U.S. Coast Guard seeks a firm-fixed-price service contract for on-site labor to repair the SSDG Cylinder bore and lower sleeve in support of the USCGC Polar Star. All work must be performed at 1801 16th Ave SW, Seattle, WA 98134, with the period of performance starting 72 hours after award. This acquisition is a 100% small business set-aside under NAICS 336611. Award will be based on the lowest evaluated price among offers deemed technically capable and with acceptable past performance. Quotes must demonstrate clear understanding of the Statement of Work and include all costs; the government intends to award without discussions.