MIL-I-7171D (NOTICE 1), MILITARY SPECIFICATION: INSULATION BLANKET, THERMAL-ACOUSTICAL (30 SEP 1999) [S/S BY SAE-AMS-I-7171)., MIL-I-7171D, dated 23 April 1993, is hereby canceled. Future acquisition for this item should refer to SAE-AMS-I-7171, 揑nsulation Blanket, Thermal-Acoustical.?CAUTION: The supersession information is valid as of the date of this notice and may be superseded by subsequent revisions of the superseding document. (Application for copies of SAE ?Aerospace Material Standards should be addressed to SAE, 400 Commonwealth Drive, Warrendale, PA 15096.)