Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number P4401 found under Tube Metallic by Bae Systems Land And Armaments L P. The National Stock Number assigned to this part is 4710002775524, 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 P4401.