Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D20027-11ITEM12 found under Resistorvariablewire Woundpre by Hy Cal Engineering. The National Stock Number assigned to this part is 5905016824954, 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 D20027-11ITEM12.