What does HARD stand for?

Handling and Reloading Device (SAUS)

Hardee Manufacturing - NCIC farm equipment make code (NCIC)

Hardee Manufacturing Company - NCIC trailer make code

Hardin, MO - American Association of Railroads railroad junction routing code

Hardware (WDAA)

Hardware Resources for Development (SAUO)

Helicopter and Airplane RADAR Detection

Helicopter & Airplane Radio Detection (SAUS)

High Performance Artillery Rocket (SAUS)

Horizontal Acoustic Range Depiction (NVT)

Harden (SAUS)

Hardin's Kentucky Reports - A publication (DLA)

Hardres' English Exchequer Reports - 145 English Reprint - A publication (DLA)