Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LTL 353CK H4 found under Light Emitting Diode by Liteon Inc. The National Stock Number assigned to this part is 5980016609172, 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 LTL 353CK H4.