Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NA2-4-189 found under Rod Kel F 1 8 D1a by Federal Specifications. The National Stock Number assigned to this part is 9530009681458, and the Federal Supply Class is 9530 Bars And Rods Nonferrous Base Metal. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like NA2-4-189.