Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number G33.STS.TAN found under Eyepiece Assembly Optical Instru by L 3 Communications Eotech Inc. The National Stock Number assigned to this part is 1240016168655, 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 G33.STS.TAN.