Department of Army supply catalog. TC 7, 8 & 9. Organizational, field, and depot maintenance allowances and list of all service parts. PM 46. Pump, centrifugal, electric motor driven Derming figure 9025 (TC stock nos. 11-6121-27-020). 11-6121-15-040. and 11-6121-21-034); Apr. 1950.