Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SS63TS8 found under Ball Valve Ported by Swagelok Ltd. The National Stock Number assigned to this part is 4820012905692, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SS63TS8.