Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PL4026E001 REV. B ITEM 027 found under Push Button by Cs Controls Incorporated. The National Stock Number assigned to this part is 5930016715016, 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 PL4026E001 REV. B ITEM 027.