GOVERNMENT CONTRACT AWARDS

* Sierracin-Sylmar Corp. of Sylmar won a $4.7-million contract from Robins Air Force Base in Georgia for windshields.

*

* HR Textron Inc. of Valencia won a $365,059 contract from the Defense General Supply Center in Richmond, Va., for aircraft components.

*

* Litton Systems Inc. of Woodland Hills won a $230,000 contract from the Defense Supply Center in Columbus, Ohio, for electrical equipment components.