Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 18518M found under Circuit Card Assemb by Datum Inc. The National Stock Number assigned to this part is 5998011726939, 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 18518M.