Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HD 1052 BSC 1 found under Cooler Air Electron by Joint Electronics Type Designation. The National Stock Number assigned to this part is 5999010783779, and the Federal Supply Class is 5999 Miscellaneous Electrical And Electronic Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HD 1052 BSC 1.