MIL-M-48640, MILITARY SPECIFICATION: MUZZLE BORESIGHT DEVICE 9364909 (M27 FOR 120MM GUN TUBE) (31-JAN-1986)

MIL-M-48640, MILITARY SPECIFICATION: MUZZLE BORESIGHT DEVICE 9364909 (M27 FOR 120MM GUN TUBE) (31-JAN-1986)., This Specification is approved for use within the U.S. Army Armament, Munitions and Chemical Command and is available for use by all Departments and Agencies of the Department of Defense. This specification establishes the requirements and quality assurance provisions for the cased series of the Muzzle Boresight Device 9364909 (M27 for 120MM Gun Tube), herein referred to as MBD.