Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WA1001A found under Knob by Tattnall County Of. The National Stock Number assigned to this part is 5355010186503, and the Federal Supply Class is 5355 Knobs And Pointers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like WA1001A.