Litton Systems Inc. of Woodland Hills won...

Litton Systems Inc. of Woodland Hills won a $4.8-million contract from Tinker Air Force Base in Oklahoma for engineering services.

* Litton Data Systems in Agoura Hills won a $845,000 contract from Naval Air Systems Command in Patuxent River, Md., for computer programmer upgrades.

* Polyfet RF Devices in Camarillo won a $247,827 contract from the Army Research Office in Research Triangle Park, N.C., for low-energy/low-noise electronics components for mobile platform applications.

* Sota Corp. of North Hollywood won a $122,745 contract from Kelly Air Force Base in Texas for overhaul and repair of pumps.

* Flamestar Corp. of Sun Valley won a $101,174 contract from the General Services Administration in Auburn, Wash., for polysulfide sealing compound.