MS14439 (NOTICE 3), MILITARY SPECIFICATION SHEET: BAR, METAL, HEXAGON, CORROSION RESISTANT, TYPE 420 )07 JAN 2009) [SUPERSEDED BY SAE-AMS-QQ-S-763]
MS14439 (NOTICE 3), MILITARY SPECIFICATION SHEET: BAR, METAL, HEXAGON, CORROSION RESISTANT, TYPE 420 )07 JAN 2009) [SUPERSEDED BY SAE-AMS-QQ-S-763].