Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 43443A found under Ball Bearing by Air Products And Chemicals Inc. The National Stock Number assigned to this part is 3110009295864, and the Federal Supply Class is 3110 Bearings Antifriction Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 43443A.