There are 2 bands called Ordnance -

1) An EBM band on Orchard Records:

“oRdnance” is the pseudonym Grayson Cain uses to differentiate his electo-industrial, and sometimes experimental noise music from his soundtrack and sound-design work. These songs and others are available as NAME YOUR OWN PRICE downloads on http://www.graysoncain.com.

2) A Chinese Thrash Metal band (军械所).

User-contributed text is available under the Creative Commons By-SA License and may also be available under the GNU FDL.