Ordnance Storage Facility (OSF)
via frontdoor.nasa.gov
Short excerpt below. Read at the original source.
Ordnance Storage Facility (OSF) Kennedy Space center (KSC) is fully equipped to handle, store and transport live ordnance that is used in launch operations. The Ordnance Storage Facility (OSF) is located near the Vehicle Assembly Building and consists of an office building, a receiving/inspection building and storage magazines. The OSF is a secure facility operated […]