MIL-STD-209 Lifting And Tiedown ProvisionsThis standard establishes dimensional limits, design considerations, positioning requirements, and strength requirements for lifting to include helicopter sling load HSL and tiedown provisions for lifting or tying down tanks and other tracked vehicles, tactical wheeled vehicles, helicopters, and other military equipment shipped assembled or disassembled in unboxed or uncrated condition, and for restraining cargo or accessories to such equipment. The lifting and tiedown requirements in this standard are necessary to permit compatibility between military equipment and the transportation systems used for deployments.

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MIL-STD-209K

not less than 1.5 times the required design limit load for the provisions.

5.2  Equipment tiedown provisions.

This section applies to equipment with a requirement to be transported by highway, rail, marine, USAF fixed-wing aircraft, and CH-47 helicopters.  For equipment with a requirement to be transported on Navy/Marine Corps aircraft, see Appendix D.

5.2.1  Number.

Equipment shall have four equipment tiedown provisions to ensure interoperability between transported military equipment and tiedown devices commonly used in the transportation environment.  Because of limited tiedown devices on ships and railcars, military equipment must be capable of being adequately restrained with only four tiedown provisions.  If equipment is sectionalized for shipping, these requirements apply to each section and to the equipment when assembled.  For type II equipment, the equipment shall have four selected points that can be used for tiedown.

5.2.2  Location.

Equipment tiedown provisions shall be located such that:

a.  Not less than 1 inch of clearance should be maintained between the equipment and the restaint devices (tiedown cables or chains).  When a restaint device must contact a part of the equipment, testing must demonstrate that the affected part(s) has sufficient strength to withstand the force exerted to prevent permanent deformation of any part of the equipment, and that contact will not adversely affect the material of

the tiedown device.

b.  Provisions do not interfere with the functioning of the equipment. c.  Maximum accessibility to the provision is maintained.

d.  Orientation of the provision shall be such that an attaching device (hook or chain), of the proper capacity, does not contact any part of the item being tied down except the provision.  This ensures interoperability between the equipment and the transportation systems.

e.  Height of provisions shall be between 2 and 6 feet, measured from the ground when the equipment is resting on a level surface, unless an integral means for reaching the provisions is provided.

f.   In the elevation view, chains or straps may be placed anywhere from vertically downward to horizontal and, in the plan view, 90° to either side of the principal direction of the equipment tiedown provision (Figure 7).  The principal direction is parallel to the longitudinal axis.  Equipment tiedown provisions shall be located on structural members of the chassis of wheeled vehicles or the hull of tracked vehicles.  They should also be located symmetrically about the item of equipment, preferably mounted on the front and

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