Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 721687-2 found under Receptacle Turnlock Fastener by Raytheon Company. The National Stock Number assigned to this part is 5325008117688, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 721687-2.