Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 306307E REV.1 PIECE 49 found under Knob by The Babcock And Wilcox Company. The National Stock Number assigned to this part is 5355006214854, and the Federal Supply Class is 5355 Knobs And Pointers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 306307E REV.1 PIECE 49.