; (ii) contracts or subcontracts for the acquisition of forgings or castings of specialty metals, unless such forgings or castings are incorporated into commercially available off-the-shelf end items, subsystems, or assemblies; (iii) contracts or subcontracts for commercially available high performance magnets unless such high performance magnets are incorporated into commercially available off-the-shelf end items or subsystems; and (iv) contracts or subcontracts for commercially available off-the-shelf fasteners, unless such fasteners are— (I) incorporated into commercially available off-the-shelf end items, subsystems, assemblies, or components