3. 52-C-905_Sheave Assembly.pdf

This is an engineering drawing/technical specification document depicting a sheave assembly (drawing number 52-C-905) that appears to be part of a Heavy Weight Fairlead Beam Assembly system for an Aircraft Arresting System. The drawing shows detailed cross-sectional views of a sheave assembly with multiple components including bearings, spring pins, lock washers, sleeves, shafts, and end plates. The document contains specific part numbers (like MS35291-113, MS-35338-48) and includes press-fit assembly instructions. It bears markings indicating it is distribution-controlled under U.S. Government export control regulations and includes contract number F41608-80-G-0037-0029 with FSCM 21439. The drawing includes revision history, manufacturing notes regarding edge treatment and sizing, and was created by Bliss Research.

This technical drawing is one of several supporting documents for solicitation FA481925Q0006, which seeks to procure 40 Heavy Weight Fairlead Beam Assemblies for the Department of the Air Force Air Combat Command. The sheave assembly depicted is a critical component that helps direct the purchase tape path in the aircraft arresting system installation.