* ISX Corp. of Westlake Village won...

* ISX Corp. of Westlake Village won a $453,479 contract from the Rome Laboratory in Rome, N.Y., for research and development.

* Visicom Laboratories Inc. of San Diego won a $444,360 contract from the Naval Surface Warfare Center in Port Hueneme for advanced data processing equipment.

* Litton Guidance and Control Systems in Northridge won a $243,204 contract from the Coast Guard in Elizabeth City, N.C., for equipment maintenance and repair.

* HR Textron Inc. of Valencia won two contracts from the Defense Supply Center in Columbus, Ohio, one of $120,000 for linear actuating cylinders and one of $55,623 for speed controls, plus a $35,182 contract from the Defense General Supply Center in Richmond, Va., for hydraulic adapter assemblies.

* Flamemaster Corp. of Sun Valley won a $134,407 contract from the General Services Administration in Auburn, Wash., for sealing compounds.

* Ontic Engineering & Manufacturing Inc. of North Hollywood won two contracts from the Defense Supply Center in Columbus, one of $98,219 for aircraft components and accessories, and one of $33,631 for valves.

* Standard Armament Inc. of Glendale won a $76,895 contract from the Defense Supply Center in Columbus, for ammunition chutes.

* Crane Hydro Aire of Burbank won a $72,600 contract from the Defense General Supply Center in Richmond, Va., for engine accessories.

* HR Textron Inc. of Pacoima won a $65,038 contract from the Defense Supply Center in Columbus, for valves.

* ITT Fluid Technology Corp. of Valencia won a $56,271 contract from the Defense General Supply Center in Richmond, Va., for housing assemblies.

* Whittaker Corp. of North Hollywood won a $52,416 contract from Tinker Air Force Base in Oklahoma for valves.

* Crane Co. in Burbank won a $49,666 contract from Hill Air Force Base in Utah for valves.

* Aero Engineering and Manufacturing Co. in Valencia won a $46,500 contract from the Defense General Supply Center in Richmond, Va., for aircraft and airframe structural components.

* Allied Logistics Inc. of Ventura won a $41,820 contract from the Defense Supply Center in Columbus, for mechanical power transmission equipment.

* Fontal Controls Inc. of Sylmar won a $38,883 contract from Tinker Air Force Base in Oklahoma for engineering services.