49ABUSL562-1DET21A-23A.pdf

This document is a detailed manufacturing specification for a marine rudder for the 49' BUSL Class Coast Guard Buoy Boat. The specification covers the complete manufacture, assembly, and testing requirements for the rudder, including detailed requirements for materials (UNS Number S17400 steel), machined surfaces (32 RMS surface texture), welding (per NAVSEA Technical Publication), welder qualifications, and quality assurance processes. Key manufacturing steps include sand blasting the blade surface, applying flow coating with corrosion preventative compound, and painting according to specific Coast Guard coating standards.

The specification mandates rigorous testing, including a 30-minute air pressure test at 3 PSI with leak detection, and requires comprehensive documentation such as material certifications, dimensional tolerance reports, and an air pressure test report. Each rudder must be individually packaged in a wood box with specific marking requirements, including a National Stock Number (2040-01-471-8081) and part number. The document is revision A, dated 1/06, originated by Ed Brubaker from the Engineering Logistics Center's Equipment Management Division, and is intended to ensure precise manufacturing standards for Coast Guard maritime equipment.