1、DETAIL SPECIFICATIONInsignia, Grade, Senior Master Sergeant, Air ForceMIL-DTL-14639/21E, dated 20-Jul-2001, has been reviewed anddetermined to be valid for use in acquisition.Reviewer Activities: DLA - CTNOTICE OFVALIDATIONNOT MEASUREMENTSENSITIVEMIL-DTL-14639/21ENOTICE 312-Jun-2013NOTE: The activit
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