Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WT-491 found under Lead Electrical by Electro Wire Products Inc. The National Stock Number assigned to this part is 2590003229861, and the Federal Supply Class is 2590 Miscellaneous Vehicular Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like WT-491.