Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number T0522 found under Pointer Dial by Hdt Expeditionary Systems Inc. The National Stock Number assigned to this part is 5355003751794, and the Federal Supply Class is 5355 Knobs And Pointers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like T0522.