Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SXK 107 3977 6 found under Switch Electronic by Harris Corp. The National Stock Number assigned to this part is 5930015545025, 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 SXK 107 3977 6.