A list of Reicha's works on Wikipedia describes Op.92 as quintets in F major, D major and E-flat major, published Vienna ca.1820. Parts for Op.92 Nos.1-3 exist at Sibley Library/University of Rochester (see parts uploaded below). Quintet No.1 from this published set matches the manuscript F major quintet here, but the other two are different. Possibly these manuscript quintets are part of a set of 6 from 1805-7, with 1-2 for two cellos and 3-6 for two violas. Perhaps Reicha took the F major quintet from this set of six, and included it as part of the 3 published in 1820 as Op.92?
Manuscript parts for the quintet in E minor are at F-Pn.