Valve, Hull/backup

3. REQUIREMENTS

3.1 ;The complete 2 inch combination hull and backup ball valve must be in accordance with Naval Sea Systems Command drawing 6408529 assembly 97, Naval Ship Systems Command drawings 4385050, 4384678, and all liabilities provided with this Contract/Purchase Order (less hull fasteners - Find Numbers 69 and 70), except as amplified or modified herein.; 3.1.1 ;Dimension for Find Number 14 on NAVSEA drawing 6408529 Sheet 10 from Datum B to the end of the 1.0 inch radius is 1.688 inches.; 3.1.2 ;The thermocouple hole depicted on page 12 of NAVSEA drawing 6408529, Find Number 5, is not required.;