BS10 Blind Flange
All Dimensions in Millimetres
• Table 'H' & Larger Sizes Available For BS10 Flanges
| BS Table 'D' | ||||||
| NB size | ||||||
| Inch. | MM | A | B | C | J | No. holes |
| 1/2" | 15 | 3.750" | 2.625" | 0.188" | 0.563" | 4 |
| 3/4" | 20 | 4.000" | 2.875" | 0.188" | 0.563" | 4 |
| 1" | 25 | 4.500" | 3.250" | 0.188" | 0.563" | 4 |
| 1-1/4" | 32 | 4.750" | 3.438" | 0.250" | 0.563" | 4 |
| 1-1/2" | 40 | 5.250" | 3.875" | 0.250" | 0.563" | 4 |
| 2" | 50 | 6.000" | 4.500" | 0.313" | 0.688" | 4 |
| 2-1/2" | 65 | 6.500" | 5.000" | 0.313" | 0.688" | 4 |
| 3" | 80 | 7.250" | 5.750" | 0.375" | 0.688" | 4 |
| 4" | 100 | 8.500" | 7.000" | 0.375" | 0.688" | 4 |
| BS Table 'E' | ||||||
| NB size | ||||||
| Inch. | MM | A | B | C | J | No. holes |
| 1/2" | 15 | 3.750" | 2.625" | 0.250" | 0.563" | 4 |
| 3/4" | 20 | 4.000" | 2.875" | 0.250" | 0.563" | 4 |
| 1" | 25 | 4.500" | 3.250" | 0.281" | 0.563" | 4 |
| 1-1/4" | 32 | 4.750" | 3.438" | 0.313" | 0.563" | 4 |
| 1-1/2" | 40 | 5.250" | 3.875" | 0.344" | 0.563" | 4 |
| 2" | 50 | 6.000" | 4.500" | 0.375" | 0.688" | 4 |
| 2-1/2" | 65 | 6.500" | 5.000" | 0.406" | 0.688" | 4 |
| 3" | 80 | 7.250" | 5.750" | 0.483" | 0.688" | 4 |
| 4" | 100 | 8.500" | 7.000" | 0.500" | 0.688" | 8 |
| BS Table 'F' | ||||||
| NB size | ||||||
| Inch. | MM | A | B | C | J | No. holes |
| 1/2" | 15 | 3.750" | 2.625" | 0.375" | 0.563" | 4 |
| 3/4" | 20 | 4.000" | 2.875" | 0.375" | 0.563" | 4 |
| 1" | 25 | 4.750" | 3.438" | 0.375" | 0.688" | 4 |
| 1-1/4" | 32 | 5.250" | 3.875" | 0.500" | 0.688" | 4 |
| 1-1/2" | 40 | 5.500" | 4.125" | 0.500" | 0.688" | 4 |
| 2" | 50 | 6.500" | 5.000" | 0.625" | 0.688" | 4 |
| 2-1/2" | 65 | 7.250" | 5.750" | 0.625" | 0.688" | 8 |
| 3" | 80 | 8.000" | 6.500" | 0.625" | 0.688" | 8 |
| 4" | 100 | 9.000" | 7.500" | 0.750" | 0.688" | 8 |