| Size NB |
Description |
BS 10
T-'H' & 'J' |
BS 10
T-'D' |
BS 10
T-'E' |
BS 10
T-'F' |
B-16.5
& ASA150 |
| ½"
15 mm |
Thickness |
15 |
15 |
15 |
15 |
15 |
| OD |
95 |
95 |
95 |
95 |
95 |
| PCD |
83 |
67 |
67 |
67 |
60 |
| Hole Dia / No of Holes |
18/4 |
14/4 |
14/4 |
14/4 |
15/4 |
| ¾"
20 mm |
Thickness |
17 |
17 |
17 |
17 |
17 |
| OD |
100 |
100 |
100 |
100 |
100 |
| PCD |
83 |
73 |
73 |
73 |
70 |
| Hole Dia/ No of Holes |
18/4 |
14/4 |
14/4 |
14/4 |
15/4 |
| 1"
25 mm |
Thickness |
19 |
19 |
19 |
19 |
19 |
| OD |
120 |
120 |
120 |
120 |
120 |
| PCD |
87 |
83 |
83 |
87 |
80 |
| Hole Dia / No of Holes |
18/4 |
14/4 |
14/4 |
18/4 |
15/4 |
| 1¼"
32 mm |
Thickness |
19 |
19 |
19 |
19 |
19 |
| OD |
140 |
140 |
140 |
140 |
140 |
| PCD |
98 |
87 |
87 |
98 |
89 |
| Hole Dia / No of Holes |
18/4 |
14/4 |
14/4 |
18/4 |
15/4 |
| 1½" 40 mm |
Thickness |
19 |
19 |
19 |
19 |
19 |
| OD |
140 |
140 |
140 |
140 |
140 |
| PCD |
105 |
98 |
98 |
105 |
98 |
| Hole Dia / No of Holes |
18/4 |
14/4 |
14/4 |
18/4 |
15/4 |
| 2"
50 mm |
Thickness |
21 |
21 |
21 |
21 |
21 |
| OD |
165 |
152 |
152 |
165 |
165 |
| PCD |
127 |
114 |
114 |
127 |
121 |
| Hole Dia / No of Holes |
18/4 |
18/4 |
18/4 |
18/4 |
19/4 |
2½"
65 mm |
Thickness |
26 |
26 |
26 |
26 |
26 |
| OD |
185 |
165 |
165 |
185 |
185 |
| PCD |
146 |
127 |
127 |
146 |
140 |
| Hole Dia / No of Holes |
18/8 |
18/4 |
18/4 |
18/8 |
19/4 |
| 3"
80 mm |
Thickness |
26 |
26 |
26 |
26 |
26 |
| OD |
200 |
184 |
184 |
200 |
200 |
| PCD |
165 |
146 |
146 |
165 |
152 |
| Hole Dia / No of Holes |
18/8 |
18/4 |
18/4 |
18/8 |
19/4 |
| 4"
100 mm |
Thickness |
27 |
27 |
27 |
27 |
27 |
| OD |
230 |
216 |
216 |
230 |
230 |
| PCD |
191 |
178 |
178 |
190 |
190 |
| Hole Dia / No of Holes |
18/8 |
18/4 |
18/8 |
18/8 |
19/8 |
| 6"
150 mm |
Thickness |
36 |
36 |
36 |
36 |
36 |
| OD |
305 |
279 |
279 |
205 |
305 |
| PCD |
260 |
235 |
235 |
260 |
241 |
| Hole Dia / No of Holes |
22/12 |
18/8 |
18/8 |
22/12 |
22/8 |
|