MIL-M-4820E (NOTICE-2), MILITARY SPECIFICATION: MOTOR-GENERATOR, SKID MOUNTED, TYPE MD-4 (05-NOV-2008)
MIL-M-4820E (NOTICE-2), MILITARY SPECIFICATION: MOTOR-GENERATOR, SKID MOUNTED, TYPE MD-4 (05-NOV-2008)., MIL-M-4820E, dated 16 July 1995, remains inactive for new
design; however, the document is valid for use.