Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4-51801.0001 C found under Jack Tip by Marconi Mobile Spa Ex Elmer Spa. The National Stock Number assigned to this part is 5935002483145, and the Federal Supply Class is 5935 Connectors Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4-51801.0001 C.