Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number JB30927 1 found under Heatsink Assembly by Bombardier Aerospace. The National Stock Number assigned to this part is 6125009800210, and the Federal Supply Class is 6125 Converters Electrical Rotating. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like JB30927 1.