Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 030-00022 found under Tee Tube by Hdt Expeditionary Systems Inc. The National Stock Number assigned to this part is 4730015333899, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 030-00022.