ATT-1_5904195.pdf

This document consists of two engineering drawings and specifications for cargo handling equipment components. The first page is a plan view and cross-section drawing (Plan "51-A") showing an O2 Level 4-Way Roller Fairleader assembly, prepared by A.C. Hoyle for what appears to be ship-based cargo operations. The drawing details the layout of a cargo drum with gypsy head, winch platform, and a roller fairleader item featuring a four-way roller system positioned at the O2 deck level. Cross-section "51-B" provides detailed dimensional specifications for the fairleader assembly, including roller placement, depth measurements, and structural configurations.

The second page presents a List of Material for the sub-assembly, identifying 19 line items required for fabrication of one complete O2 Level 4-Way Roller Fairleader assembly. Materials specified include cast steel boom heel steps, aluminum bronze bushings, monel fittings, AISI 4140 steel pins, aluminum bronze washers, brass components, and cresyl steel hardware. Item 16 (highlighted in yellow) specifies one Roller Fairleader 4-Way cast steel component with part number 700006009, weighing 1000 pounds. Additional items include steel bars, bolts, hexagonal nuts, and safety wire. The assembly documentation includes revision notation "C" dated 12-05-08 with drawing number C2-400 and NAYSEA reference 571-5904195, indicating this is a naval ship equipment specification.