Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 0X2101Y found under Light Emitting Diode by Oxleyinc. The National Stock Number assigned to this part is 5980015071391, and the Federal Supply Class is 5980 Optoelectrical Devices And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 0X2101Y.