Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RB59-0-050-56V found under Power Supply by Power Mate Co. The National Stock Number assigned to this part is 6130004352989, and the Federal Supply Class is 6130 Converters Electrical Non Rotating. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RB59-0-050-56V.