Black and Decker Blender Jar Bottom- Black - BL-5000-11R.
Univen, heavy duty plastic blender bottom screw cap.
This black plastic screw on bottom cap is what holds the blade on the bottom of the jar.
Fits Black & Decker blender models BL1900, BL2900, BL3900, BL4900, BL5000, BL5900, BL6000, BL9000. Top of cap has 2.75" opening where it screws on to jar.
