What does Hak stand for?

Hamster Kidney - Medicine (EDAA)

Adelanto, CA - Location identifier - FAA (FAAL)

Hackett Special - NCIC firearms make code (NCIC)

Haikou - China - Airport symbol (OAG)

Hakka Chinese - Language code (ETLW)

Hakodate - Japan - Seismograph station code, US Geological Survey (SEIS)

Harka Air Services - Nigeria - FAA designator (FAAC)

Hatco Marine, Soldotna, AK - Manufacturer code for watercraft hull identification number (USCG)

Hawkish (ABBR)

Horizontal Access Kit (NASA)