Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5518-8TPL4 found under Caster Swivel by Fki Industries Inc. The National Stock Number assigned to this part is 5340005260935, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5518-8TPL4.