A2 - Enclosure-2_7003242_USACE Murden Hub Details_77419087.pdf

This technical drawing is a detailed hub detail schematic for a marine propeller component produced by Michigan Wheel Marine for the U.S. Army Corps of Engineers. The document (Reference T1080725, dated 23-SEP-2013) shows a precise engineering blueprint with dimensional specifications for a hub, including critical measurements such as bore taper (1:10), inside corner angles, and specific geometric tolerances. The drawing includes a full Section A-A view, comprehensive dimensional notations in both imperial and metric measurements, and manufacturing notes indicating CMM (Coordinate Measuring Machine) inspection of the existing part. The part number is 532040, with revision B, and is associated with a USACE Murden propeller project drawing number 700-3242.

The technical specifications reveal intricate design parameters, including a 3.847 (+0.001/-0.03) bore diameter, 20mm-2.5 THD x 30mm (1.18") deep threaded section, and a 120-degree spaced bolt pattern. Manufacturing notes specify that MWM (Michigan Wheel Marine) manufactured parts are to be stamped according to a specific drawing (9600-068 REV. C). The document provides comprehensive engineering details that would be critical for precise manufacturing and replacement of marine propeller hub components for military marine applications.