Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 61 And 3827 And 2 found under Cover Heater by Elmwood Sensors Inc. The National Stock Number assigned to this part is 1430002108231, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 61 And 3827 And 2.