Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BULLETIN BK4618 FUREGE 5 ITEM 19 found under Spring Helical Compression by Averstar Inc. The National Stock Number assigned to this part is 5360015536576, 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 BULLETIN BK4618 FUREGE 5 ITEM 19.