MS90509 (NOTICE 2), MILITARY STANDARD: S SHAPES (I BEAM), STRUCTURAL STEEL, CARBON, MEDIUM (20 OCT 1995) [NO SUPERSEDING DOCUMENT].
MS90509 (NOTICE 2), MILITARY STANDARD: S SHAPES (I BEAM), STRUCTURAL STEEL, CARBON, MEDIUM (20 OCT 1995) [NO SUPERSEDING DOCUMENT].