Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1A20904H03 found under Circuit Card Assemb by U S Dept Of Transportation Federal. The National Stock Number assigned to this part is 5998016059780, 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 1A20904H03.