JAN-M-476A, JOINT ARMY-NAVY SPECIFICATION, MANGANESE, POWDERED (FOR USE IN AMMUNITION) (13 AUG 1948)

JAN-M-476A, JOINT ARMY-NAVY SPECIFICATION, MANGANESE, POWDERED (FOR USE IN AMMUNITION) (13 AUG 1948)., This specification covers grades of manganese powder, as specified in the contract or order.