The standard originally consisted of 16 parts, but was revised to be more practical and now primarily focuses on fewer integrated documents: Part 1 - Cloudfront.net
DIN 5480 is a prominent German standard that defines the geometry, dimensions, and gauging principles for involute splines with a 30° pressure angle. Used extensively in automotive, aerospace, and heavy machinery industries, this standard ensures reliable torque transmission between shafts and hubs. Din 5480 Pdf