Ducommun Inc. on Tuesday said that a subsidiary had secured a long-term contract from Boeing Co. to furnish fin tip assemblies for the Boeing 777.

The Carson company said that work of Ducommun AeroStructures would be performed at its Southern California plants in Monrovia, Gardena, and Orange, along with a facility in Guaymas, Mexico. The first set of parts is to be delivered in the first quarter of 2011. Terms of the contract were not disclosed.

“We are very pleased by the award of this latest 777 contract, as it truly represents our ‘One Ducommun’ philosophy – incorporating four of our facilities across North America,” said Chief Executive Anthony Reardon in a statement. “These tail assemblies will leverage our core competencies in composites, metal-bond, and metallic forming, as well as take advantage of our efficient assembly operations in Guaymas.”

Shares were down 16 cents, or less than a percent, to $19.37 in midday trading on the New York Stock Exchange.