Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4K-3613 found under Plate Hook Block Assembly by Caterpillar Inc. The National Stock Number assigned to this part is 2590014709723, 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 4K-3613.