Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2310-1052 found under Spring Helical Extension by Seeburg Corp The Seeburg Products. The National Stock Number assigned to this part is 5360006599462, 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 2310-1052.