Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 45H1B1U1SP found under Rectifier Metallic by Recticoinc. The National Stock Number assigned to this part is 6130006149961, 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 45H1B1U1SP.