Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RFG5F3900HMSP0RM found under Resistor Variable W by Qinetiq Ltd. The National Stock Number assigned to this part is 5905004685248, 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 RFG5F3900HMSP0RM.