Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B1874PC17 found under Cable Welding Equipment by Cayuga Mfg Corp. The National Stock Number assigned to this part is 3438007090728, and the Federal Supply Class is 3438 Miscellaneous Welding Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B1874PC17.