Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FRU-8516-038 found under Optical Sensor Dilutor by Danam Electronics Inc. The National Stock Number assigned to this part is 6630014681807, 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 FRU-8516-038.