The xxxx which you give in the file name does not matter... Just that it should be of the format 99-xxx-scsi-udev.rules.. You can even name the file as 99-zenmike-scsi-udev.rules..
Now inside the file replace your xxxx with the vendor name and product name that you get from the block directory.
ACTION=="add", SUBSYSTEMS=="scsi", ATTRS{vendor}=="xxxx" , ATTRS{model}=="xxxxx", RUN+="/bin/sh -c 'echo 180 >/sys$DEVPATH/device/timeout'"