need a NC Tactile pushbutton 6mm square

I needed a NC Tactile pushbutton in a project, I layed the PCB design and sent it to the FAB House and then I found that its very hard for them to find the Normal closed Tactile push-button.I needed a push-button that was normally closed (NC) and would open when pushed. Almost every tactile push-button is normally open (NO) and closed when pushed.So, does anyone know of a standard-width, compact-height, through-hole, tactile push-button in a normally closed state? I am using 6mm square tactile Push-button footprint.

so i got some replies on the post also, i think its better to share that here ...

the one with 6x6mm NC from a chinese brand omtron electronics.
**broken link removed**

in smd you can find an American brand E-switch

you can keep check the comments on the post for updated links

sorry guyz its Omten

so i got some replies on the post also, i think its better to share that here ...

the one with 6x6mm NC from a chinese brand omten electronics.
www.omten.en.alibaba.com

in smd you can find an American brand E-switch

you can keep check the comments on the post for updated links