The meaning of the Acronym HAC is...

HAC is

• Heading Alignment Center
• Heading Alignment Circle
• Heading Alignment Cone
• Heading Alignment Cylinder

More Meanings For HAC:

• Hierarchical Access Control
• Heard All Continents
• Hackers Always Conqueror
• Hear All Continents
• Horler And Company
• Hughes Aircraft Company
• Health Administration Center (VA)
• House Appropriations Committee
• Hughes Aircraft Company
• Heading Alignment Center
• Heading Alignment Circle
• Heading Alignment Cone
• Heading Alignment Cylinder
• Hughes Aircraft Company
• Habbo Advice Centre

HAC is also in:

• Amateur Radio
• Conferences
• FDA
• Firms
• Funnies
• Military
• NASA
• Security
• Transportation
• Unfiled