The Nord series 3.801 to 3.965 was a 4-6-4T tank locomotive for suburban service around Paris designed by Gaston Du Bousquet. It was a more powerful replacement for the 4-4-4T series 2.231. Although Du Bousquet was a friend of four-cylinder compound engines, it was a two-cylinder simple. In 1909, 1910 and 1911 SFCM built one batch each, followed by five more locomotives delivered from the Nord's Hellemmes shops in 1914. Six more went to Franco-Belge.

From No. 3.836, the locomotives were built with feedwater heaters and superheaters. The earlier ones later got a higher boiler pressure to compensate for the lower power. Between 1926 and 1932, 29 locomotives were equipped with pneumatic steam reversers to allow for push-pull working. With the founding of the SNCF, they became 2-232 TA. Some were destroyed in World War II and the last one was withdrawn in 1957.