AN23-40A – Bolt – Aircraft Structural Bolt

Aviation standard structural bolt manufactured to AN23 specification, designed for use in aircraft assemblies requiring high-strength fastening with drilled shank capability. The “A” suffix indicates a safety-drilled bolt suitable for use with safety wire or cotter pin retention methods, providing positive locking in vibration-prone installations. AN23 bolts are typically used in structural, control, and engine accessory applications where reliable load transfer and secure retention are critical.

Application: Aircraft airframe structures, control system linkages, engine accessories, and landing gear assemblies where AN23-series bolts are specified in OEM IPC or maintenance manuals

Function: Provides a structural fastening connection for shear and tensile load transfer between components, with provision for mechanical locking via safety wire or cotter pin