Particularly, it is the object of this invention to set forth a fully split cartridge
mechanical seal assembly, for use in situations that use rotating equipment, such as pumps, agitators and mixers that are difficult and time consuming to disassemble, comprising two unitized self contained assemblies; said unitized self contained assemblies having means for attaching said unitized self contained assemblies over a rotating shaft or sleeve; said complete solid cylindrical assembly having setting means for aligning and retaining said complete solid cylindrical assembly in position and for removing said complete solid cylindrical assembly after permanently attached; said complete solid cylindrical assembly having fastening means for connecting said complete solid cylindrical assembly to a fixed stationary housing or chamber; and attaching means for connecting said complete solid cylindrical assembly rotating portion to said rotating shaft or sleeve.