Acronym: HAC

Category: NASA Acronyms Meaning / Stands for: Heading Alignment Cylinder

Other acronyms from this category

	Acronym	Meaning
	MTBM	Mean Time Between Maintenance
	SRBAB	SRB Assembly Building
	UU	Micromicron
	F/A	Failure Analysis
	OIV	Oxidizer Isolation Valve
	SMT	Selective Message Transaction
	RAM	Responsibility Assignment Matrix
	PSM	Pyro Substitute Monitor
	VA	Volt Ampere
	SLF	Shuttle Landing Facility (OLF)