Can't install flash player - computer in a secure location w/o internet access.

I am running RHEL 7 Desktop in a secured location with no access to the Internet. I am trying to install Flash. I downloaded Flash from Adobe for RHEL 7 and tried using the following commands from https://access.redhat.com/solutions/20920

(Ran as root)
rpm -Uvh /home/bvpsuser/Downloads/ adobe-release-x86_64-1.0-1.noarch.rpm
yum install flash-plugin.x86_64

I cannot access The Internet because this computer is in a secure location. How can I install Flash without having access to The Internet?