Pdf - Nas523

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.

This quadrant specifies the fastener's basic part number (often or MS standards) and the material it is made from. nas523 pdf

Fastener diameter and manufacturer head location. The NAS523 code is a standardized practice that

Understanding the "crosshair" is critical for any aviation maintenance engineer (AME) or technician working with sheet metal. ↖️ Northwest (NW): Identity & Material Fastener diameter and manufacturer head location

Indicated by "N" (Near side) or "F" (Far side) to show where the manufactured head should rest. AIA/NAS - NAS523 - FASTENER CODE | GlobalSpec

Often identifies an MS20470AD rivet (2117 aluminum alloy).

Often identifies an MS20426AD rivet (countersunk 2117 alloy). ↗️ Northeast (NE): Diameter & Head Placement