Thread data
SAE flange sizes and dimensions
Four bolt split flange for large pump and valve ports from 1/2 to 2 in. Code 61 is standard pressure and Code 62 is high pressure. An O ring in the flange head seals against the pad.
- Standard
- SAE J518 Code 61 and 62
- Seals by
- O ring in flange head face
- Used for
- Pump and valve pressure ports, 1/2 to 2 in
- Sizes
- C61 1/2 to C62 2
SAE flange dimensions
The dimensions we machine to. Pressure values are nominal working ratings for steel at room temperature.
| Size | Male | Female | Code | Nominal | Head OD | Head thickness | Bolts | Bolt spacing | O ring | Rated to |
|---|---|---|---|---|---|---|---|---|---|---|
| C61 1/2 | SAE Code 61 flange head, 0.5 in | SAE Code 61 flange pad, 0.5 in, 4× 5/16-18 | 61, standard pressure | 0.5 in | 30.18 mm | 6.73 mm | 4× 5/16-18 | 38.10 mm × 17.48 mm | AS568-210 | 5,000 psi |
| C61 3/4 | SAE Code 61 flange head, 0.75 in | SAE Code 61 flange pad, 0.75 in, 4× 3/8-16 | 61, standard pressure | 0.75 in | 38.10 mm | 6.73 mm | 4× 3/8-16 | 47.63 mm × 22.22 mm | AS568-214 | 5,000 psi |
| C61 1 | SAE Code 61 flange head, 1 in | SAE Code 61 flange pad, 1 in, 4× 3/8-16 | 61, standard pressure | 1 in | 44.45 mm | 7.92 mm | 4× 3/8-16 | 52.37 mm × 26.19 mm | AS568-219 | 5,000 psi |
| C61 1 1/4 | SAE Code 61 flange head, 1.25 in | SAE Code 61 flange pad, 1.25 in, 4× 7/16-14 | 61, standard pressure | 1.25 in | 50.80 mm | 7.92 mm | 4× 7/16-14 | 58.72 mm × 30.18 mm | AS568-222 | 4,000 psi |
| C61 1 1/2 | SAE Code 61 flange head, 1.5 in | SAE Code 61 flange pad, 1.5 in, 4× 1/2-13 | 61, standard pressure | 1.5 in | 60.32 mm | 7.92 mm | 4× 1/2-13 | 69.85 mm × 35.71 mm | AS568-225 | 3,000 psi |
| C61 2 | SAE Code 61 flange head, 2 in | SAE Code 61 flange pad, 2 in, 4× 1/2-13 | 61, standard pressure | 2 in | 71.42 mm | 9.52 mm | 4× 1/2-13 | 77.77 mm × 42.88 mm | AS568-228 | 3,000 psi |
| C62 1/2 | SAE Code 62 flange head, 0.5 in | SAE Code 62 flange pad, 0.5 in, 4× 5/16-18 | 62, high pressure | 0.5 in | 31.75 mm | 7.75 mm | 4× 5/16-18 | 40.49 mm × 18.26 mm | AS568-210 | 6,000 psi |
| C62 3/4 | SAE Code 62 flange head, 0.75 in | SAE Code 62 flange pad, 0.75 in, 4× 3/8-16 | 62, high pressure | 0.75 in | 41.27 mm | 8.76 mm | 4× 3/8-16 | 50.80 mm × 23.83 mm | AS568-214 | 6,000 psi |
| C62 1 | SAE Code 62 flange head, 1 in | SAE Code 62 flange pad, 1 in, 4× 7/16-14 | 62, high pressure | 1 in | 47.63 mm | 9.52 mm | 4× 7/16-14 | 57.15 mm × 27.79 mm | AS568-219 | 6,000 psi |
| C62 1 1/4 | SAE Code 62 flange head, 1.25 in | SAE Code 62 flange pad, 1.25 in, 4× 1/2-13 | 62, high pressure | 1.25 in | 53.97 mm | 10.29 mm | 4× 1/2-13 | 66.67 mm × 31.75 mm | AS568-222 | 6,000 psi |
| C62 1 1/2 | SAE Code 62 flange head, 1.5 in | SAE Code 62 flange pad, 1.5 in, 4× 5/8-11 | 62, high pressure | 1.5 in | 63.50 mm | 12.57 mm | 4× 5/8-11 | 79.38 mm × 36.53 mm | AS568-225 | 6,000 psi |
| C62 2 | SAE Code 62 flange head, 2 in | SAE Code 62 flange pad, 2 in, 4× 3/4-10 | 62, high pressure | 2 in | 79.38 mm | 12.57 mm | 4× 3/4-10 | 96.82 mm × 44.45 mm | AS568-228 | 6,000 psi |
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