Udo Rall, 86, a retired specialist on cooperatives with the Rural Electrification Administration who also was active in arts and crafts, died of congestive heart failure Wednesday a Suburban Hospital. He lived in Bethesda.

Mr. Rall came here in 1934, and worked on self-help cooperatives with the Federal Emergency Relief Administration and the Works Progress Administration before joining the REA in 1937. He retired in 1955.

On his own time, he helped found consumer cooperatives in the Washington area, including the Bannockburn Housing Cooperative and the Rochdale Cooperative, now Greenbelt Consumer Services.

Mr. Rall was born in Heilbron, Germany. He came to this country as a teen-ager and settled in California, where he studied manual arts and then taught arts and crafts in schools there.

After he retired from REA, he again became active in arts and crafts, particularly in enamels and painting. He exhibited copper-enameled jewelry and plaques at the Corcoran and other galleries. One of his paintings was included in a Corcoran show.

When his eyesight began to fail, Mr. Rall became active in several organizations working with the blind, including the Montgomery County Book Discussion Group for the blind.

Survivors include his wife of 59 years, the former Doris Keiser, of Bethesda; two sons, Wilfrid, of Bethesda, and Waldo, of Pittsburgh, and four grandchildren.