Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R2A7599 found under Hose Metallic by Marmon Herrington Company Inc. The National Stock Number assigned to this part is 4720008331984, and the Federal Supply Class is 4720 Hose And Flexible Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R2A7599.