- Material: Cast Iron
- Nominal Size: 4 in
- Pressure Class: 125 Lb
- Bolt Circle Diameter: 7-1/2
- Bolt Hole Size: 3/4
- Finish: Black
- Manufacturer: First Supply Approved
- Number of Bolt Holes: 8
- Outside Diameter: 9
- Series: 17BL1
- Thickness: 0.94 in
Blind Flange, Series: 17BL1, 4 in Nominal, 0.94 in Thickness, 7-1/2 in Bolt Circle, 8 Bolt Holes, 3/4 in, 9 in Outside Dia, 125 lb, Cast Iron, Black