Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RVS-29997 ITEM 6 found under Nipple Pipe by Red Valve Companyinc. The National Stock Number assigned to this part is 4730015418488, 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 RVS-29997 ITEM 6.