Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 502020-01 found under Holder Printed Circ by Drs C3 And Aviation Company. The National Stock Number assigned to this part is 5998014329830, and the Federal Supply Class is 5998 Electrical And Electronic Assemblies Boards Cards And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 502020-01.