Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number OO-D-1297 5 found under Drying Tumbler Laun by Federal Specifications. The National Stock Number assigned to this part is 3510010316442, 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 OO-D-1297 5.