Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CU-2107B found under Cabinet Electrical Equipment by Dyno Bud Industries Inc. The National Stock Number assigned to this part is 5975000451275, and the Federal Supply Class is 5975 Electrical Hardware And Supplies. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CU-2107B.