Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F2531224 found under Pin Spring by Funk Mfg Co. The National Stock Number assigned to this part is 5315011756713, and the Federal Supply Class is 5315 Nails Machine Keys And Pins. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like F2531224.