A-A-50539 (NOTICE-2), COMMERCIAL ITEM DESCRIPTION (CID): VIBRATORS, CONCRETE, ELECTRIC-MOTOR-DRIVEN (07-JUN-2007) [SUPERSEDING MIL-V-21731D]

A-A-50539 (NOTICE-2), COMMERCIAL ITEM DESCRIPTION (CID): VIBRATORS, CONCRETE, ELECTRIC-MOTOR-DRIVEN (07-JUN-2007) [SUPERSEDING MIL-V-21731D]., A-A-50539, dated 22 June 1992, is hereby canceled without replacement.