Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MS4W63T15-L4 found under Clamp Hose Aircraft by Cardinal Fastener And Specialty Co. The National Stock Number assigned to this part is 1680015509239, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MS4W63T15-L4.