Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 584R026H01 found under Plenum Air Duct by Kaman Aerostructures Wichita Inc. The National Stock Number assigned to this part is 1270010606507, 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 584R026H01.