Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SS401A2-316 found under Adapter Straight Pipe To Tube by Swagelok Company. The National Stock Number assigned to this part is 4730001371862, 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 SS401A2-316.