This specification covers an aluminum alloy in the form of sheet 0.008 to 0.126 inch (0.20 to 3.20 mm), inclusive, in nominal thickness, with a grain size of ASTM No. 6 or finer (see 8.5).
Rationale:
AMS4277B revises Title, Condition (3.2), Properties (3.3.3), Reports (4.4.1) and Identification (5.1.1), and results from a Five-Year Review and update of this specification.