Section II. DESCRIPTION
Special Reusable Shipping and Storage Containers.
a. Special reusable shipping and storage containers are designed for application to specific items and are
intended to last for the life of those items. Each container has a nameplate that identifies, by nomenclature, the item for
which it is used. The nameplate also identifies the National Stock Number (NSN) and part number of the container.
b. All containers, except main rotor blade boxes, provide airtight protection. Older engine containers were
designed to be pressurized to 5p.s.i.g. Each is equipped with an air-filling valve and a 7p.s.i. internal relief valve. Older
rotor hub and transmission containers were not designed to be pressurized. Some of these containers were built of heavy
gauge metal and do not use any valve. Others were designed to breathe and have 2-way relief systems which consist of
either the single valve type, in that one valve works both ways, or the double valve type, in which two valves are used,
one installed in the reverse direction. Although the valve(s) is set to open at a differential of 2.5 to 3.0 pos. pressure or
1.0 to 1.5 pos. vacuum, the container is nevertheless airtight.
c. New engine, transmission and rotor hub containers also are being designed with 2-way relief valve systems.
d. Engine containers and most of the newer transmission and rotor hub containers are designed to MIL-C-5584.
Older transmission and rotor hub containers were designed to MIL-C-9282. M-in rotor blade boxes con- form to MIL-B-
e. Also included are containers designed to MIL-D-6054. These are Military Standard (MS) style containers but
they are larger than the commercially available standard sizes and they are designed for specific items.