SAE AMS4279C PDF
This specification covers an aluminum alloy in the form of sheet clad on both sides with a different alloy for sheet thicknesses of 0.020 to 0.128 inches (0.51 to 3.25 mm), inclusive, in nominal thickness (see 8.5).
AMS4279C results from a Five-Year Review and update of this specification with changes to prohibit unauthorized exceptions (3.3.3, 3.6, 4.4.1, 5.1.1, 8.4), and update form (1.1), applicable documents (Section 2, 3.2), condition (3.2), ordering information (8.5), and allow the use of the immediate prior specification revision (8.3).