Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R714B-100 found under Hose Assembly Respirator by Survivair Corp. The National Stock Number assigned to this part is 4240012506410, and the Federal Supply Class is 4240 Safety And Rescue Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R714B-100.