Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3A453 found under Hub Spring by D N K. The National Stock Number assigned to this part is 2990003668840, and the Federal Supply Class is 2990 Miscellaneous Engine Accessories Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3A453.