Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 321584 ITEM 30 found under Lining Friction by Oldenburg Group Incorporated. The National Stock Number assigned to this part is 3950011223590, and the Federal Supply Class is 3950 Winches Hoists Cranes And Derricks. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 321584 ITEM 30.