FED-STD-H28/2A (NOTICE-1), FEDERAL STANDARD: Screw-Thread Standards for Federal Services Section 2 Unified Inch Screw Threads- UN and UNR Thread Forms (03-APR-1989
FED-STD-H28/2A (NOTICE-1), FEDERAL STANDARD: Screw-Thread Standards for Federal Services Section 2 Unified Inch Screw Threads- UN and UNR Thread Forms (03-APR-1989)., FED-STD-H28/2A, has been reviewed and determined to be valid for use in acquisition.