Brass Bulkhead Union
BRASS BULKHEAD UNION Tube OD Imperial (inches)
| IMPERIAL |
| PART No. | 0D1 Imperial | 0D | F Hex | A Inch | L Inch | Panel Hole size | Max Panel Thickness | H Inch | H1 mm |
| FBF/BU/1I | 1/16 | 0.05 | 5/16 | 0.34 | 1.24 | 13/64 | 0.12 | 23.87 | 13.46 |
| FBF/BU/2I | 1/8 | 0.09 | 1/2 | 0.50 | 2.02 | 21/64 | 0.50 | 38.10 | 24.63 |
| FBF/BU/3I | 3/16 | 0.12 | 9/16 | 0.54 | 2.11 | 25/64 | 0.50 | 40.38 | 25.40 |
| FBF/BU/4I | 1/4 | 0.19 | 5/8 | 0.60 | 2.27 | 29/64 | 0.40 | 42.92 | 26.16 |
| FBF/BU/5I | 5/16 | 0.25 | 11/16 | 0.64 | 2.39 | 33/64 | 0.44 | 45.97 | 28.44 |
| FBF/BU/6I | 3/8 | 0.28 | 3/4 | 0.66 | 2.45 | 37/64 | 0.44 | 47.49 | 29.46 |
| FBF/BU/8I | 1/2 | 0.41 | 15/16 | 0.90 | 2.80 | 49/64 | 0.50 | 50.80 | 31.75 |
| FBF/BU/10I | 5/8 | 0.50 | 1-1/16 | 0.96 | 2.86 | 57/64 | 0.50 | 52.32 | 32.51 |
| FBF/BU/12I | 3/4 | 0.62 | 1-3/16 | 0.96 | 3.11 | 11/64 | 0.66 | 58.67 | 37.33 |
| FBF/BU/16I | 1 | 0.88 | 1-5/8 | 1.23 | 3.77 | 121/64 | 0.75 | 71.37 | 45.21 |
| FBF/BU/20I | 1-1/4 | 1.09 | 1-7/8 | 1.62 | 4.85 | 141/64 | 0.75 | 78.99 | 47.75 |
| FBF/BU/24I | 1-1/2 | 1.34 | 2-1/4 | 1.97 | 5.48 | 161/64 | 0.75 | 84.83 | 49.27 |
| FBF/BU/32I | 2 | 1.81 | 2-3/4 | 2.66 | 7.10 | 241/64 | 0.75 | 105.66 | 56.38 |
BRASS BULKHEAD UNION Tube OD metric (mm)
| METRIC |
| PART No. | 0D1 Metric | 0D | F Hex | A mm | L mm | Panel Hole size | Panel Thickness | H mm | H1 mm |
| FBF/BU/3M | 3 | 2.4 | 14 | 12.9 | 51.3 | 8.3 | 12.7 | 38.1 | 24.6 |
| FBF/BU/4M | 4 | 2.4 | 14 | 13.2 | 53.6 | 9.9 | 12.7 | 40.4 | 25.4 |
| FBF/BU/6M | 6 | 4.8 | 16 | 15.3 | 57.7 | 11.5 | 10.2 | 42.9 | 26.2 |
| FBF/BU/8M | 8 | 6.4 | 18 | 16.2 | 61.0 | 13.1 | 11.2 | 46.0 | 28.6 |
| FBF/BU/10M | 10 | 7.9 | 22 | 17.2 | 63.7 | 16.3 | 11.2 | 48.5 | 29.4 |
| FBF/BU/12M | 12 | 9.5 | 24 | 22.8 | 71.0 | 19.5 | 12.7 | 50.8 | 31.8 |
| FBF/BU/14M | 14 | 11.1 | 27 | 24.4 | 72.5 | 22.5 | 12.7 | 52.3 | 32.5 |
| FBF/BU/15M | 15 | 11.9 | 27 | 24.4 | 72.5 | 22.8 | 12.7 | 52.3 | 32.5 |
| FBF/BU/16M | 16 | 12.7 | 27 | 24.4 | 72.5 | 22.8 | 12.7 | 52.3 | 32.5 |
| FBF/BU/18M | 18 | 15.1 | 30 | 24.4 | 78.9 | 26.0 | 16.8 | 58.7 | 37.3 |
| FBF/BU/20M | 20 | 15.9 | 35 | 26.0 | 84.5 | 29.0 | 19.0 | 64.3 | 42.9 |
| FBF/BU/25M | 25 | 21.8 | 40 | 31.2 | 96.0 | 33.7 | 19.0 | 71.4 | 45.2 |
| FBF/BU/30M | 30 | 26.2 | 50 | 39.6 | 123.7 | 40.5 | 19.0 | 82.3 | 49.5 |
| FBF/BU/32M | 32 | 28.6 | 50 | 42.0 | 128.3 | 42.5 | 19.0 | 82.3 | 49.5 |
| FBF/BU/38M | 38 | 33.7 | 60 | 49.4 | 144.6 | 50.5 | 19.0 | 89.4 | 51.5 |
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