Abstract: A stackable container includes top and bottom surfaces; opposing side surfaces; opposing end surfaces; and interlock mechanisms on at least one of 1) the top and bottom surfaces, 2) the opposing side surfaces and 3) the opposing end surfaces. Because of the interlock mechanisms, a plurality of the containers may be stacked and shipped, such as on a pallet, without the use of support bands.

Abstract: An interlocking device for use with rectangular containers, such as metal ammunition containers having a top lid, is shown. The interlocking device comprises a substantially flat plate, coextensive with the top lid of the containers, and having a set of locking tabs to attach to the top lid. The device also has a set of positioning tabs to engage the bottom of another container, when such containers are stacked. The device is attached to similar devices by a set of interconnection mechanisms, which may be male-female connectors located along each edge of the device, such that the interlocking mechanisms on the front and rear edges of the device are of opposite interlocking design and the locking mechanism on the front edge of one device will demountably interlock with the locking mechanism on the rear edge of another device.