: This part likely represents the software version. In Cisco's naming conventions, this would typically be broken down into major, minor, and patch or build numbers. So, this could imply:
"AIR-AP2800-K9-ME-8-5-182-0.tar" a software image used to run Cisco Mobility Express on Aironet 2800 Series Access Points (APs) Air-ap2800-k9-me-8-5-182-0.tar
If you're looking to write a blog post about this, you might consider topics such as: : This part likely represents the software version