Male Bulkhead Connector
Bulkhead Male Connector fittings, defined by the SAE J514 and MIL-DTL-18866 standards, feature a 37-degree flare seating surface. These fittings are commonly used in fuel delivery and fluid power systems, particularly in high-pressure environments up to 10,000 psi. While the SAE J514 standard has largely replaced the MS16142 military specification, some tools are still listed under MS16142. These fittings have similar dimensions to Army-Navy fittings but are manufactured to less strict tolerances, making them generally more affordable.
SAE 45-degree flare equipment looks similar but is not interchangeable with 37-degree flare equipment, even though dash sizes 2, 3, 4, 5, 8, 10, 14, and 16 have the same thread size. Some couplings may feature dual machined seats to accommodate both 37-degree and 45-degree flare fittings.
In flared connection systems, the seal is created through metal-to-metal contact between the finished surface of the fitting’s nose and the inside diameter of the flared tubing. A cover helps evenly distribute the compressive forces from the burn nut to the tube’s flared end. Fittings are typically made from materials such as forged carbon steel, forged brass, machined brass, Monel, forged stainless steel, and nickel-copper alloys.
Structural Safety Devices:
- Bulkhead: A wall within a ship, vehicle, or container.
- Torpedo Bulkhead: An armor plate or protective covering designed to keep a ship afloat if the hull is hit by a shell or torpedo.
- Bulkhead Barrier: A retaining wall used for coastal management or as a structural device like a partition.
- Bulkhead Door: An angled door covering the exterior stairwell of a basement.
Kaizen Steel Industries is a leading supplier of Bulkhead Male Connectors in various shapes, sizes, standards, and custom dimensions.
Bulkhead Male Connector Specification
| Pressure Ratings | Up to 11 000 psig (760 bar), |
|---|---|
| Medium-Pressure | Up to 20 000 psig (1378 bar) |
| Types | NPT, ISO/BP, SAE/MS, AN, weld ends |
| Sizes | 1/16 to 2 in.; 2 to 50 mm, |
| Medium-Pressure | 1/4, 3/8, 1/2, 9/16, 3/4, 1 in.; 6, 10, 12 mm |
| High-Pressure | 1/8 to 9/16 in. |
| Temperature Ratings | Up to 1000°F (537°C) |
BulkHead Male Connector - INCH OD Tubes X Male NPT Threads
| T Tube OD | P NPT Male | A | Ax | B | D | E min. | F A/F | G A/F | H | Hx | Panel Hole Drill Size | Max.Panel Thickness | Fluid Control Part No. |
| 1/8 | 1/8 | 46.4 | 31.2 | 9.6 | 12.7 | 2.4 | 14 | 11 | 39.8 | 24.6 | 8.3 | 12.7 | 2-SCMB-N |
| 1/4 1/4 | 1/8 1/4 | 49.5 54.1 | 33.5 33.5 | 9.6 14.3 | 15.3 15.3 | 4.8 4.8 | 16 16 | 14 14 | 42.2 46.7 | 26.2 26.2 | 11.5 11.5 | 10.2 10.2 | 4-2SCMB-N 4 SCMB-N |
| 3/8 3/8 3/8 | 1/4 3/8 1/2 | 57.4 57.4 63.7 | 36.8 36.8 36.8 | 14.3 14.3 19.1 | 16.8 16.8 16.8 | 7.1 7.1 7.1 | 19 19 22 | 17 17 17 | 50.0 50.0 56.5 | 29.5 29.5 29.5 | 14.7 14.7 14.7 | 11.2 11.2 11.2 | 6-4SCMB-N 6 SCMB-N 6-8SCMB-N |
| 1/2 1/2 | 3/8 1/2 | 63.3 68.8 | 41.9 41.9 | 14.3 19.1 | 22.9 22.9 | 9.6 10.4 | 24 24 | 22 22 | 53.0 58.8 | 31.8 31.8 | 19.5 19.5 | 12.7 12.7 | 8-6SCMB-N 8 SCMB-N |
| 3/4 | 3/4 | 76.2 | 47.5 | 19.1 | 24.4 | 15.8 | 30 | 28.5 | 66.9 | 37.4 | 25.8 | 16.8 | 12 SCMB-N |
| 1 | 1 | 93.2 | 57.4 | 23.9 | 31.2 | 22.3 | 41 | 38 | 81.0 | 45.2 | 33.7 | 19.0 | 16 SCMB-N |
| 1.1/4 | 1.1/4 | 110.5 | 72.5 | 23.9 | 41.2 | 27.6 | 50 | 50 | 87.5 | 49.5 | 42.5 | 19.0 | 20 SCMB-N |
| 1.1/2 | 1.1/2 | 122.8 | 79.1 | 26.2 | 50.0 | 34.0 | 60 | 57 | 95.5 | 51.5 | 50.5 | 19.0 | 24 SCMB-N |
METRIC OD Tubes X Male NPT Threads
| T Tube OD | P NPT Male | A | Ax | B | D | E min. | F A/F | G A/F | H | Hx | Panel Hole Drill Size | Max.Panel Thickness | Fluid Control Part No. |
| 3 | 1/8 | 46.4 | 31.2 | 9.6 | 12.9 | 2.4 | 11 | 11 | 39.8 | 24.6 | 8.3 | 12.7 | SCMB 3-2N |
| 6 | 1/8 | 49.5 | 33.5 | 9.6 | 15.3 | 4.8 | 16 | 14 | 42.2 | 26.2 | 11.5 | 10.2 | SCM B6-2N |
| 10 10 | 1/4 3/8 | 57.4 57.4 | 36.8 36.8 | 14.3 14.3 | 17.2 17.2 | 7.1 7.1 | 19 19 | 17 17 | 50.0 50.0 | 29.5 29.5 | 14.7 14.7 | 11.2 11.2 | SCMB 10-4N SCMB10-4N |
| 12 12 | 3/8 1/2 | 63.3 68.8 | 41.9 41.9 | 14.3 19.1 | 22.0 22.0 | 9.6 10.4 | 24 24 | 22 22 | 53.0 58.8 | 31.8 31.8 | 19.5 19.5 | 12.7 12.7 | SCMB 12-6N SCMB 12-8N |
| 16 | 1/2 | 69.6 | 42.6 | 19.1 | 24.4 | 11.9 | 27 | 25 | 59.5 | 32.5 | 22.8 | 12.7 | SCMB16-8N |
| 22 | 3/4 | 83.3 | 53.0 | 19.1 | 26.0 | 15.8 | 35 | 25 | 73.2 | 42.9 | 29.0 | 19.0 | SCMB 22-12N |
| 25 | 1 | 93.2 | 57.4 | 23.9 | 31.3 | 22.3 | 41 | 38 | 81.0 | 45.2 | 33.7 | 19.0 | SCMB 25-16N |
| 32 | 1.1/4 | 110.5 | 72.5 | 23.9 | 42.0 | 28.6 | 50 | 50 | 87.5 | 49.5 | 42.5 | 19.0 | SCMB 32-20N |
| 38 | 1.1/2 | 122.8 | 79.1 | 26.2 | 49.4 | 33.7 | 60 | 57 | 95.5 | 51.5 | 50.5 | 19.0 | SCMB 38-24N |
Industry Applications
Male Bulkhead Adapters are essential in various industries where tubes or pipes are used. Their applications span across:
- Aircraft: For reliable connections in aviation systems.
- Engine & Parts Manufacturing: In engines and their components.
- Automobile: To ensure secure fittings in vehicle systems.
- Electrical Equipment: For durable connections in electrical assemblies.
- Instrumentation Equipment: Instruments requiring precise fittings.
- Engine & Turbine Manufacturing: For high-performance engine and turbine systems.
- Iron & Steel Manufacturing: Involved in heavy machinery and processing.
- Metal Industry: For various metal processing and fabrication needs.
Kaizen Steel Industries Export to
Burundi, Comoros, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Malawi, Mauritius, Mayotte, Mozambique, Reunion, Rwanda, Seychelles, Somalia, Tanzania, United Republic of Uganda, Zambia, Zimbabwe, Angola, Cameroon, Central African Republic, Chad, Congo (Brazzaville), Congo, Democratic Republic of the Equatorial Guinea, Gabon, Sao Tome and Principe, Algeria, Egypt, Libyan Arab Jamahiriya, Morroco, South Sudan, Sudan, Tunisia, Western Sahara, Botswana, Lesotho, Namibia, South Africa, Swaziland, Benin, Burkina Faso, Cape Verde, Cote d\\’Ivoire (Ivory Coast), Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Mali, Mauritania, Niger, Nigeria, Saint Helena, Senegal, Sierra Leone, Togo
Anguilla, Antigua and Barbuda, Aruba, Bahamas, Barbados, Bonaire, Saint Eustatius and Saba, British Virgin Islands, Cayman Islands, Cuba, Curaçao, Dominica, Dominican Republic, Grenada, Guadeloupe, Haiti, Jamaica, Martinique, Monserrat, Puerto Rico, Saint-Barthélemy, St. Kitts and Nevis, Saint Lucia, Saint Martin, Saint Vincent and the Grenadines, Sint Maarten, Trinidad and Tobago, Turks and Caicos Islands, Virgin Islands (US), Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Falkland Islands (Malvinas), French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela, Bermuda, Canada, Greenland, Saint Pierre and Miquelon, United States
Afghanistan, Armenia, Azerbaijan, Bangladesh, Bhutan, Brunei Darussalam, Cambodia, China, Georgia, Hong Kong, India, Indonesia, Japan, Kazakhstan, South Korea, Kyrgyzstan, Laos, Macao, Malaysia, Maldives, Mongolia, Myanmar (ex-Burma), Nepal, Phillipines, Singapore, Sri Lanka (ex-Ceilan), Taiwan, Tajikistan, Thailand, Timor Leste (West), Turkmenistan, Uzbekistan, Vietnam
Albania, Andorra, Belarus, Bosnia, Croatia, European Union, Faroe Islands, Gibraltar, Guerney and Alderney, Iceland, Jersey, Kosovo, Liechtenstein, Macedonia, Man, Island of Moldova, Monaco, Montenegro, Norway, Russia, San Marino, Serbia, Svalbard and Jan Mayen Islands, Switzerland, Turkey, Ukraine, Vatican City State (Holy See)
Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, United Kingdom
Bahrain, Iraq, Iran, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, Syria, United Arab Emirates, Yemen
