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

FED-STD-H28/4 (NOTICE-4), FEDERAL STANDARD: SCREW THREAD STANDARDS FOR FEDERAL SERVICES, SECTION 4, CONTROLLED RADIUS ROOT SCREW THREADS, UNJ SYMBOL (29 AUG 2006)., FED-STD-H28/4, dated 10 September 2001, has been reviewed and determined to be valid for use in acquisition.