Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A19186-4 found under Cap Pillow Block by Bogue Electric Manufacturing Co. The National Stock Number assigned to this part is 3130011387591, and the Federal Supply Class is 3130 Bearings Mounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A19186-4.