MIL-DTL-6458 Chain Assemblies, Single Leg, Aircraft Cargo Tie DownThis specification covers two types of flight safety critical aircraft cargo tie down chain assemblies. The chains described in this specification are to be used in conjunction with the tie down tensioners described in MIL-DTL-25959, where the Type I chain assembly is to be used with the Type I \(styles A and B\) and Type III tie down tensioners, and the Type II chain assembly is to be used with the Type II \(styles A and B\) and Type IV tie down tensioners.