Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SSB1 found under Boot Dust And Moisture Seal by Tristate Electrical Supply Co Inc. The National Stock Number assigned to this part is 5930014864755, 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 SSB1.