Parts such as the F-16: Bolt-washer,8x20, Pin,step Bar Join, Pin,cotter 2.0x15, Arm Comp.,l Step are included in the Crf70f 2004 (4) Japan De02-170 F-16 parts fiche.
On this parts fiche the Bolt-washer,8x20 is the most specified component.
The F-16 assembly is constructed from several parts from which the Bar Comp,step is the most expensive.