MS14439, MILITARY STANDARD: BAR, METAL, HEXAGON, CORROSION RESISTANT, TYPE 420 (28 FEB 1985) [SUPERSEDED BY SAE-AMS-QQ-S-763]
MS14439, MILITARY STANDARD: BAR, METAL, HEXAGON, CORROSION RESISTANT, TYPE 420 (28 FEB 1985) [SUPERSEDED BY SAE-AMS-QQ-S-763].