Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3057P-1-203 found under Resistor Variable Wire Wound Non by Fel Avionics Limited. The National Stock Number assigned to this part is 5905010650380, 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 3057P-1-203.