Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LIR TI6850.57 found under by Jaquith Industries Inc. The National Stock Number assigned to this part is 5445011084919, and the Federal Supply Class is 5445 Prefabricated Tower Structures. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like LIR TI6850.57.