The NAS523 Rivet Code is a standardized symbolic system used in the aerospace industry to provide detailed instructions for rivet installation on engineering drawings. Instead of listing each detail separately, a "crosshair" symbol is used, with each of its four quadrants representing specific metrics for the fastener. The NAS523 "Cross" Symbol System
She didn't report it. Not yet. Instead, she walked to the supply cage. The old master sergeant there, a man named Crockett who had ears like radar dishes, saw the printout in her hand. nas523 rivet code pdf
Aircraft Standard Hand Book: Contains practical instructions on marking holes and removing skins using the NAS523 system. The NAS523 Rivet Code is a standardized symbolic
NAS523 Rivet Identification Guide | PDF | Rivet | Sheet Metal Not yet
The number after the hyphen represents the grip length in sixteenths of an inch. This is the total thickness of the material being joined.