Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CA4RS1-2-1800 found under Resistor Fixed Film by Phaostron Instrument And Electronic. The National Stock Number assigned to this part is 5905008282402, and the Federal Supply Class is 5905 Resistors. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CA4RS1-2-1800.