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20 x 110mm USN United States

20 x 110mm USN HEI United States IS 7-54 20MM-MK.5,MOD.0 profile view.20 x 110mm USN HEI United States IS 7-54 20MM-MK.5,MOD.0 head view.

Details

TypeHEI
Projectilesteel, aluminum fuze, yellow over red, 1 copper driving band Projectile Markings: (stamped on fuze) LOT-66 AER-55 MK 78-0 DJ Driving Band Markings: 20MM MK 12 0 A LOT D-79
Casesteel, choke crimp, cadmium plated
Primernone
HeadstampIS 7-54 20MM-MK.5,MOD.0
NotesThe projectile is empty and the fuze has no internal components.