Internally Threaded Heads for High-Pressure Hydraulic Cylinders
- Material: 65-45-12 Ductile Iron
- Threads into Case (Barrel, Body, Main)
- Buttress Thread design
- Pressures up to 5000 PSI with properly designed Case
- Includes Buffer Seal and U-cup Seal Groove
- Standard D-Style or Umbrella Wiper Compatible
| Part Number | Bore +.003″ -.003″ | Rod +.003″ -.003″ | A | B | C | D | E | Buttress F | G | Seal Kit Number | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4070300175 | 3.000 | 1.750 | 3.50 | 2.63 | 2.25 | 1.00 | 0.47 | 3-1/4″-12 | 0.31 | 4080300175U | ||
| 4070300200 | 3.000 | 2.000 | 3.50 | 2.63 | 2.25 | 1.00 | 0.47 | 3-1/4″-12 | 0.31 | 4080300200U | ||
| 4070350175 | 3.500 | 1.750 | 4.00 | 2.63 | 2.25 | 1.00 | 0.47 | 3-3/4″-12 | 0.31 | 4080350175U | ||
| 4070350200 | 3.500 | 2.000 | 4.00 | 2.63 | 2.25 | 1.00 | 0.47 | 3-3/4″-12 | 0.31 | 4080350200U | ||
| 4070400200 | 4.000 | 2.000 | 4.63 | 3.25 | 2.75 | 1.25 | 0.53 | 4-1/4″-12 | 0.38 | 4080400200U | ||
| 4070400250 | 4.000 | 2.500 | 4.63 | 3.25 | 2.75 | 1.25 | 0.53 | 4-1/4″-12 | 0.38 | 4080400250U | ||
| 4070400300 | 4.000 | 3.000 | 4.63 | 3.25 | 2.75 | 1.38 | 0.21 | 4-1/4″-12 | N/A | 4080400300U | ||
| 4070450250 | 4.500 | 2.500 | 5.13 | 3.25 | 2.75 | 1.25 | 0.53 | 4-3/4″-12 | 0.38 | 4080450250U | ||
| 4070450300 | 4.500 | 3.000 | 5.13 | 3.25 | 2.75 | 1.25 | 0.53 | 4-3/4″-12 | 0.38 | 4080450300U | ||
| 4070450350 | 4.500 | 3.500 | 5.13 | 3.25 | 2.75 | 1.38 | 0.19 | 4-3/4″-12 | N/A | 4080450350U | ||
| 4070500250 | 5.000 | 2.500 | 5.75 | 3.63 | 3.13 | 1.38 | 0.78 | 5-1/4″-12 | 0.56 | 4080500250U | ||
| 4070500300 | 5.000 | 3.000 | 5.75 | 3.63 | 3.13 | 1.38 | 0.78 | 5-1/4″-12 | 0.56 | 4080500300U | ||
| 4070500350 | 5.000 | 3.500 | 5.75 | 3.63 | 3.13 | 1.38 | 0.78 | 5-1/4″-12 | 0.56 | 4080500350U | ||
| 4070500400 | 5.000 | 4.000 | 5.75 | 3.63 | 3.13 | 1.38 | 0.19 | 5-1/4″-12 | N/A | 4080500400U | ||
| 4070600300 | 6.000 | 3.000 | 6.75 | 3.63 | 3.13 | 1.38 | 0.78 | 6-1/4″-12 | 0.56 | 4080600300U | ||
| 4070600350 | 6.000 | 3.500 | 6.75 | 3.63 | 3.13 | 1.38 | 0.78 | 6-1/4″-12 | 0.56 | 4080600350U | ||
| 4070600400 | 6.000 | 4.000 | 6.75 | 3.63 | 3.13 | 1.38 | 0.78 | 6-1/4″-12 | 0.56 | 4080600400U | ||
| 4070600450 | 6.000 | 4.500 | 6.75 | 3.63 | 3.13 | 1.38 | 0.78 | 6-1/4″-12 | 0.56 | 4080600450U |
| Basic Thread Size | Minimum Major Diameter | Pitch Diameter | Minor Diameter |
|---|---|---|---|
| 2-1/4″-12 | 2.2604 | 2.2000 /2.2075 | 2.1500 /2.1575 |
| 2-3/4″-12 | 2.7604 | 2.7000 /2.7080 | 2.6500 /2.6580 |
| 3-1/4″-12 | 3.2604 | 3.2000 /3.2080 | 3.1500 /3.1580 |
| 3-1/2″-12 | 3.5104 | 3.4500 /3.4580 | 3.4000 /3.4080 |
| 3-3/4″-12 | 3.7604 | 3.7000 /3.7080 | 3.6500 /3.6580 |
| 4-1/4″-12 | 4.2604 | 4.2000 /4.2084 | 4.1500 /4.1584 |
| 4-3/4″-12 | 4.7604 | 4.7000 /4.7084 | 4.6500 /4.6584 |
| 5-1/4″-12 | 5.2604 | 5.2000 /5.2084 | 5.1500 /5.1584 |
| 5-3/4″-12 | 5.7604 | 5.7000 /5.7084 | 5.6500 /5.6584 |
| 6-1/4″-12 | 6.2604 | 6.2000 /6.2084 | 6.1500 /6.1584 |
| 7-1/4″-10 | 7.2626 | 7.1900 /7.1995 | 7.1300 /7.1395 |
| 8-1/4″-10 | 8.2626 | 8.1900 /8.1995 | 8.1300 /8.1395 |
| 10-1/4″-10 | 10.2626 | 10.1900 /10.1995 | 10.1300 /10.1395 |
