Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U21-J1-Z-G-E-2 found under Switch Toggle by C And K Components Inc. The National Stock Number assigned to this part is 5930013547260, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like U21-J1-Z-G-E-2.