08-20016_WHEEL CART NBOC MLV.pdf

This document is a technical drawing specification for a Wheel Cart used in the NASA Balloon Program. The drawing provides detailed mechanical specifications, assembly instructions, and component requirements for manufacturing a wheeled cart assembly.

The cart assembly consists of nine wheel members (A through J) with various dimensions and specifications detailed across multiple sheets. Key manufacturing requirements include: all dimensions in inches unless otherwise specified; removal of burrs and sharp edges; pre-weld machining dimensions on each component tagged with part and serial numbers until welded; welding inspection and acceptance per AWS D1.1/D1.1M:2020; filler metal per AWS A5.1 (ER70S-a) and AWS A5.18 (ER70S-3); all butt and T-joints joined using CJP welds per AWS D1.1; visual inspection and magnetic particle testing or liquid penetrant testing (PT) for all welds; post-weld inspection per NASA STD-5008 standards; surface rust removal and degreasing per NASA STD-B to include subsections; and application of carboline carboazing primer followed by carboline carbo acrylic mid-coat brown and two-coat carboline carbo acrylic topcoat. The document includes detailed dimensional drawings showing wheel configurations, lifting shackles, and component assembly points with specific measurements, weld call-outs, and quality inspection requirements. This drawing is restricted to authorized NASA contractors and may not be copied, distributed, or used outside the NASA Balloon Program without express written authorization.