flat head machine (screw) 
sound power level, A weighted 
mega (10
6
 when used with SI 
units), male 
gauge (meters, wire size) 
International Organization for 
Standardization 
Japanese Industry Standard 
Kohler communication protocol  
molded-case circuit breaker 
one thousand circular mils  
kilograms per square 
centimeter  
kilograms per cubic meter  
one one-thousandth of an inch  
high cylinder head temperature 
high exhaust temp., high 
engine temp.  
heating, ventilation, and air 
conditioning 
hertz (cycles per second)  
length by width by height  
International Building Code  
Motoren-und Turbinen-Union 
pounds mass per cubic feet 
inside diameter, identification 
International Electrotechnical 
Commission 
Institute of Electrical and 
Electronics Engineers