17-3-4850 ECU Frame.pdf

This document is a technical drawing package for an ECU (Electronic Control Unit) Frame Assembly, consisting of engineering schematics and parts lists for military equipment developed by the U.S. Army Futures Command, Combat Capabilities Development Command, Soldier Center located in Natick, Massachusetts.

The drawing package includes detailed specifications for multiple frame components manufactured from aluminum and steel materials. Key assemblies documented are: ECU Frame Weldment Assembly (drawing 17-3-4851) composed of vertical and horizontal rectangular tubes with angle channels; ECU Frame Assembly (drawing 17-3-4850) featuring welded frame construction with vertical rectangular tubes, horizontal rectangular tubes, angle rectangular tubes, end cap tubes, and removable panels; and ECU Frame U Channel (drawing 17-3-4854) constructed from aluminum per ASTM B221. Material specifications include .125 wall thickness aluminum at 90-degree angles per ASTM B221, and aluminum rectangular tubes per ASTM B221 6061-T6. All components require removal of burrs and sharp edges with identification per MIL-STD-130. The assembly employs blind-open-end rivets (MS24243/SA304 and MS24243/SA406) with .250-28 UNJF-3B nuts. The document notes that the U Channel is not correctly depicted in Detail A, Top, and Bottom views. All drawings were generated and maintained by CAD system with changes directed by design activity. The initial release occurred on 25-07-08 with subsequent revisions through 25-07-09.