MIL-T-81915 (NOTICE 1), MILITARY SPECIFICATION: TITANIUM AND TITANIUM-ALLOY CASTINGS, INVESTMENT (21 SEP 1998) [S/S BY SAE-AMS-T-81915]., MIL-T-81915, dated 16 March 1973, with Amendment 1, dated 14 November 1991, is hereby canceled. Future acquisition of this item should refer to SAE-AMS-T-81915, "Titaniumand Titanium-Alloy Castings, Investment."