Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TS 1421 REV X found under Switch Pressure by Detroit Switch Corp. The National Stock Number assigned to this part is 5930012359147, 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 TS 1421 REV X.