FED-STD-H28/4 (NOTICE-3), FEDERAL STANDARD: SCREW THREAD STANDARDS FOR FEDERAL SERVICES, SECTION 4, CONTROLLED RADIUS ROOT SCREW THREADS, UNJ SYMBOL (

FED-STD-H28/4 (NOTICE-3), FEDERAL STANDARD: SCREW THREAD STANDARDS FOR FEDERAL SERVICES, SECTION 4, CONTROLLED RADIUS ROOT SCREW THREADS, UNJ SYMBOL (10 SEP 2001)., FED-STD-H28/4, dated 10 August 1993, has been reviewed and determined to be valid for use in acquistion.