Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RE 70 DAR-RSO 009 found under Sight Infinity by Dti Associates Inc. The National Stock Number assigned to this part is 1240015349907, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RE 70 DAR-RSO 009.