Standard Specification for
Aluminum and Aluminum-Alloy Die Forgings, Hand
Forgings, and Rolled Ring Forgings1
This fashionable is issued below the constant designation b 247; the quantity at once following the designation suggests the 12 months of
authentic adoption or, within the case of revision, the year of final revision. various in parentheses shows the yr of remaining reapproval. a
superscript epsilon (e) suggests a piece of writing alternate since the last revision or reapproval.
This standard has been authorised for use through groups of the department of defense.
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