Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FULFLO 507 10 TO 30LB found under Spring Helical Comp by Ruthman Pump And Engineering Inc. The National Stock Number assigned to this part is 5360012413254, 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 FULFLO 507 10 TO 30LB.