Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H23-12K found under Cylinder Reciprocating Compresso by Air Dry Co Of America Llc. The National Stock Number assigned to this part is 4310005929459, and the Federal Supply Class is 4310 Compressors And Vacuum Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like H23-12K.