AIA NASM23964

The self-retaining bolts are primarily intended for use in shear applications at dynamic points in flight control linkages, engine control mechanisms, fuel controls, bell crank systems and other dynamic joint assemblies of aircraft where self-locking nuts should not be used and where the failure of cotter pin or locking wire would affect safety of flight or endanger personnel. Self retaining bolts are intended to be used with the following nuts: AN310, AN320, MS17825, MS17826, MS21224 and MS21244.

This specification covers positive locking self-retaining bolts.