Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E1330.400.0 found under Spring Ring Spindle by Ringfeder Power Transmission Usa. The National Stock Number assigned to this part is 5360002310308, and the Federal Supply Class is 5360 Coil Flat Leaf And Wire Springs. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like E1330.400.0.