MIL-HDBK-341 (NOTICE 1), DEPARTMENT OF DEFENSE HANDBOOK: COATING, ALUMINUM, AND SILICON DIFFUSION, PROCESS FOR (04 DEC 2008) [SUPERSEDING MIL-STD-341]., MIL-HDBK-341(AT), dated 29 March 1988, has been reviewed and determined to be valid for use in acquisition.