Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SS QC4 S 400 SS QC4 B 4PM found under Coupling Assembly Q by Swagelok Ltd. The National Stock Number assigned to this part is 4730008250016, 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 SS QC4 S 400 SS QC4 B 4PM.