The NAS523 PDF specifies that records of these tests must be kept for a specific duration (often the life of the part plus 10 years for flight-critical components). Your PDF is not just a test guide; it is a legal record matrix.
: The manufacturer's head faces away from the viewer, placing the shop-formed bucktail on the near side. 3. Southwest (SW) Quadrant: Hole Preparation Requirements nas523 pdf top
It looks like a cross (+) with information in the four quadrants. The NAS523 PDF specifies that records of these
The standard's scope covers all types of fasteners where installation involves a permanent change in shape, often requiring the fastener to be destroyed for removal. This includes various aerospace fasteners like solid rivets, blind rivets, and specialized locking components. This includes various aerospace fasteners like solid rivets,
This means that when performing repairs, the shop mechanic must interpret NAS523 codes to select the correct rivet type, diameter, grip length, and head style.
Indicates the grip length or total length, usually in 1/16 inch increments. 🛠️ Why "Top" Matters in NAS523