In the "microns matter" world of aerospace engineering, improper installation can lead to housing damage or bearing failure. Adhering to NAS0331 provides: Structural Integrity : Creates a seamless metal-to-metal bond. Uniform Testing
Nondestructive examination procedures, including penetrant inspection. Related Tooling and Hardware nas0331 pdf
Because NAS (National Aerospace Standards) documents are intellectual property managed by standards organizations (such as SAE International or AIA), the official PDF is typically not free. In the "microns matter" world of aerospace engineering,