Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MSC 120-1 found under Bootdust And Moisture Seal by Mocap Llc. The National Stock Number assigned to this part is 5340016946835, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MSC 120-1.