08-20012 Service Brake System Package.pdf

This document is a technical drawing specification for an Axle Assembly Port Side component related to the NASA Balloon Program. The drawing provides detailed engineering specifications, including materials, dimensions, tolerances, and assembly instructions for multiple subcomponents that comprise the axle assembly.

The primary assembly consists of several key elements: an axle shaft (NBOC MLV material per specification 08-20012-50), caliper shields, tension plates, parking caliper brackets, spline adapters, and axle hinge pins. Detailed drawings specify component dimensions, surface finishes (including phosphate coating per MIL-DTL-16232 and carboline paint finishes per NASA-STD-5008), fastener torque requirements, and assembly procedures. Critical specifications include machined dimensions with tight tolerances (ranging from ±0.005 to ±0.125 inches depending on feature), heat treatment requirements, and post-forging/post-weld inspection protocols. The document mandates compliance with AWS D1.1/D1.1M:2020 for welding standards and includes magnetic particle testing and liquid penetrant testing requirements. All components must be inspected visually and undergo specific machining operations prior to coating and assembly. The engineering drawings are property of the NASA Balloon Program and are classified as Unclassified, with export control restrictions noted for certain countries including Cuba, Sudan, North Korea, Iran, Syria, and Ukraine.