Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F1000374 found under Tube Bent Metallic by Bushmaster Firearms International. The National Stock Number assigned to this part is 4710016259682, and the Federal Supply Class is 4710 Pipe Tube And Rigid Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like F1000374.