Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SYC1163 found under Ring by Itt Bell And Gosset Hydronics. The National Stock Number assigned to this part is 4310000194220, and the Federal Supply Class is 4310 Compressors And Vacuum Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SYC1163.