Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4W8344 found under Locking Plate Nut A by Caterpillar Inc. The National Stock Number assigned to this part is 5340013519559, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4W8344.