Nas523 Pdf Verified May 2026
Often identifies an MS20426AD rivet (countersunk 2117 alloy). ↗️ Northeast (NE): Diameter & Head Placement
The system uses a symbolic "cross" located on blueprints to give technicians immediate instructions for a specific location: Part number and material alloy code. nas523 pdf
The NAS523 code is a standardized practice that includes all types of fasteners that undergo permanent deformation during installation. Removing these fasteners typically requires their destruction, making precise initial installation essential for structural integrity. Often identifies an MS20426AD rivet (countersunk 2117 alloy)