Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DSI-500-3381 found under Electronics Box by Qioptiq Ltd. The National Stock Number assigned to this part is 2590016671003, and the Federal Supply Class is 2590 Miscellaneous Vehicular Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like DSI-500-3381.