Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2500 1 19 found under Insert Screw Thread by A P M Hexseal Corporation. The National Stock Number assigned to this part is 5325012965485, 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 2500 1 19.