The Alco Valves Group compression fitting data sheets provide a comprehensive guide to the measurements of each component in the entire Alco-Lok range. The sheets have been carefully produced to provide all the necessary technical information you need to help and identify which fitting is best suited to your requirements. Please contact the Alco Valves Group for any further technical advice.
Female Bulkhead Connectors
Metric Dimensions (mm)
| T o/d | P | M | D | F | G Nut | F1 | H | J | L | Max Panel | L1 | Panel Hole |
| 6 | 1/8 | 10 | 17 | 14 | 14 | 17 | 39 | 35 | 26 | 12 | 48 | 11.6 |
| 6 | 1/4 | 15 | 17 | 14 | 14 | 17 | 44 | 35 | 26 | 12 | 53 | 11.6 |
| 10 | 1/4 | 15 | 18 | 17 | 19 | 19 | 47 | 38 | 29.5 | 10 | 55.5 | 16.4 |
| 12 | 3/8 | 16 | 24 | 22 | 22 | 24 | 50 | 43 | 32 | 14 | 61 | 19.5 |
| 12 | 1/2 | 20 | 24 | 27 | 22 | 24 | 58 | 43 | 32 | 14 | 69 | 19.5 |
Imperial Dimensions (inch)
| T o/d | P | M | D | F | G Nut | F1 | H | J | L | L1 | Panel Hole | Max Panel |
| 1/4 | 1/8 | 0.39 | 60 | 5/8 | 9/16 | 5/8 | 1.56 | 1.32 | 1.03 | 1.85 | 29/64 | 0.4 |
| 1/4 | 1/4 | 0.59 | 0.6 | 3/4 | 9/16 | 5/8 | 1.75 | 1.32 | 1.03 | 2.04 | 29/64 | 0.4 |
| 3/8 | 1/4 | 0.59 | 0.66 | 3/4 | 11/16 | 3/4 | 1.88 | 1.45 | 1.16 | 2.17 | 37/64 | 0.4 |
| 1/2 | 3/8 | 0.59 | 0.9 | 15/16 | 7/8 | 15/16 | 2.03 | 1.65 | 1.25 | 2.43 | 49/64 | 0.5 |
| 1/2 | 1/2 | 0.78 | 0.9 | 1-1/16 | 7/8 | 15/16 | 2.22 | 1.65 | 1.25 | 2.62 | 49/64 | 0.5 |
Male Bulkhead Connectors
Metric Dimensions (mm)
| T o/d | P | M | D | F | G Nut | F1 | H | J | L | Max Panel | L1 | Panel Hole |
| 6 | 1/8 | 10 | 17 | 14 | 14 | 17 | 42 | 35 | 26 | 51 | 11.6 | 12 |
| 6 | 1/4 | 15 | 17 | 14 | 14 | 17 | 47 | 35 | 265 | 56 | 11.6 | 12 |
| 10 | 1/4 | 15 | 18 | 17 | 19 | 19 | 52 | 38 | 29.5 | 60.5 | 16.4 | 10 |
| 12 | 1/2 | 20 | 24 | 22 | 22 | 24 | 60 | 43 | 32 | 71 | 19.5 | 14 |
Imperial Dimensions (inch)
| T o/d | P | M | D | F | G Nut | F1 | H | J | L | Max Panel | L1 | Panel Hole |
| 1/4 | 1/8 | 0.38 | 0.6 | 5/8 | 9/16 | 5/8 | 1.66 | 1.32 | 1.03 | 1.95 | 29/64 | 0.4 |
| 1/4 | 1/4 | 0.56 | 0.6 | 5/8 | 9/16 | 5/8 | 1.81 | 1.32 | 1.03 | 2.1 | 29.64 | 0.4 |
| 3/8 | 1/4 | 0.56 | 0.66 | 3/4 | 11/16 | 3/4 | 1.97 | 1.45 | 1.16 | 2.26 | 37/64 | 0.4 |
| 1/2 | 1/2 | 0.75 | 0.9 | 15/16 | 7/8 | 15/16 | 2.28 | 1.65 | 1.25 | 2.68 | 49/64 | 0.5 |
Adapter
Alco-Lok AccessoriesBulkhead Connectors
Bulkhead Unions
Close Nipple
Coupling
Gauge Adapter
Hex Female Cap 
Hex Male Plug