Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PT502CWY300-28V 20-W18 found under Light Emitting Diode by Ledtronics Inc. The National Stock Number assigned to this part is 5980013752989, 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 PT502CWY300-28V 20-W18.