Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 14-43500 ITEM 4 found under Bladderaccumulatorhydraulic by Young Engineering And Manufacturing. The National Stock Number assigned to this part is 3040016747415, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 14-43500 ITEM 4.