25QS082 SSJ REDACTED.pdf

This document is a NAVSUP Fleet Logistics Centers Sole Source Justification form for procuring a Rosemount OXT4A In Situ Oxygen Analyzer. The specific item (OXT4A-3-0-3-1-14-3-1-0-1-11) is needed to replace a failed oxygen analyzer in a boiler, classified under Ships Critical Item #5 for Propulsion/Machinery Control Systems. The procurement is a sole source requirement from Rosemount Analytical, Inc., with only authorized distributors permitted to provide direct replacement parts. The item is critical and can only be sourced from qualified providers who can ensure compatibility with existing equipment configurations, as mandated by COMSCCINST 4990.1C. The document emphasizes that this is a direct replacement for the NO.1A X 1B Main Boiler, with other parts deemed incompatible.