Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number T2A-3921F found under Resistor Fixed Wire by Shallcross Inc. The National Stock Number assigned to this part is 5905012039820, 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 T2A-3921F.