A mounting assembly for a self-contained breathing apparatus (SCBA) includes a back plate defining a plurality of apertures therethrough arranged in first and second columns. The apertures in the columns are sized and spaced to receive corresponding first and second mounting straps woven therethrough that are configured to extend around webbing straps of a carrying jacket to fasten the back plate to the carrying jacket. The back plate includes a first press stud associated with the first column and a second press stud associated with the second column, which are configured to engage ends of the respective first and second mounting straps to releasably secure the mounting straps to the back plate. A tank securing strap on the back plate releasably fastens a supply tank to the back plate. A valve retaining mount on the back plate releasably secures an air supply valve for engagement with the supply tank.