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The Bulkhead Male Connector (NPT) is a precision-engineered instrumentation fitting designed to establish a secure transition between a tube line and a female NPT threaded port while passing through a panel, enclosure, or bulkhead. It features an elongated, fully threaded body and a specialized locknut that allows the fitting to be rigidly mounted to a surface, providing mechanical stability and protecting the tubing from vibrations or stress at the point of entry. On the tube side, it utilizes a high-performance double-ferrule compression system for a leak-proof, torque-free seal, while the male NPT end uses tapered threads to create a pressure-tight connection with the mating port. These connectors are widely used in industrial control panels and instrumentation racks where organized, professional routing through structural boundaries is required for high-pressure fluid or gas systems.
| BULKHEAD MALE CONNECTOR | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Fractional Tube | Basic Ordering Number | Dimensions in (mm) | Panel Hole Size in. (mm) | Max. Panel Thickness in. (mm) | |||||||
| T-Tube O.D. (in.) | P-NPT Thread Size | L | B | C | E | G | F | Gx | |||
| 1/16 | 1/16 | VBMC-SS-1-1N | 1.19(30.2) | 0.38(9.7) | 0.34(8.6) | 0.05(1.3) | 0.31(7.9) | 0.31(7.9) | 0.31(7.9) | 0.20(5.2) | 0.25(6.4) |
| 1/16 | 1/8 | VBMC-SS-1-2N | 1.27(32.3) | 0.38(9.7) | 0.34(8.6) | 0.05(1.3) | 0.31(7.9) | 0.44(11.1) | 0.31(7.9) | 0.20(5.2) | 0.25(6.4) |
| 1/8 | 1/8 | VBMC-SS-2-2N | 1.83(46.5) | 0.38(9.7) | 0.50(12.7) | 0.09(2.3) | 0.44(11.1) | 0.50(12.7) | 0.50(12.7) | 0.33(8.3) | 0.50(12.7) |
| 3/16 | 1/8 | VBMC-SS-3-2N | 1.89(48.0) | 0.38(9.7) | 0.54(13.7) | 0.12(3.0) | 0.50(12.7) | 0.56(14.3) | 0.56(14.3) | 0.39(9.9) | 0.50(12.7) |
| 1/4 | 1/8 | VBMC-SS-4-2N | 1.95(49.5) | 0.38(9.7) | 0.60(15.2) | 0.19(4.8) | 0.56(14.3) | 0.63(15.9) | 0.63(15.9) | 0.45(11.5) | 0.40(10.2) |
| 1/4 | 1/4 | VBMC-SS-4-4N | 2.13(54.1) | 0.56(14.2) | 0.60(15.2) | 0.19(4.8) | 0.56(14.3) | 0.63(15.9) | 0.63(15.9) | 0.45(11.5) | 0.40(10.2) |
| 1/4 | 3/8 | VBMC-SS-4-6N | 2.16(54.9) | 0.56(14.2) | 0.60(15.2) | 0.19(4.8) | 0.63(15.9) | 0.69(17.5) | 0.63(15.9) | 0.45(11.5) | 0.40(10.2) |
| 1/4 | 1/2 | VBMC-SS-4-8N | 2.37(60.3) | 0.75(19.1) | 0.60(15.2) | 0.19(4.8) | 0.56(14.3) | 0.87(22.2) | 0.63(15.9) | 0.45(11.5) | 0.40(10.2) |
| 5/16 | 1/8 | VBMC-SS-5-2N | 2.08(52.8) | 0.38(9.7) | 0.64(16.3) | 0.19(4.8) | 0.63(15.9) | 0.69(17.5) | 0.69(17.5) | 0.52(13.1) | 0.44(11.2) |
| 5/16 | 1/4 | VBMC-SS-5-4N | 2.27(57.7) | 0.56(14.2) | 0.64(16.3) | 0.25(6.4) | 0.63(15.9) | 0.69(17.5) | 0.69(17.5) | 0.52(13.1) | 0.44(11.2) |
| 3/8 | 1/8 | VBMC-SS-6-2N | 2.08(52.9) | 0.38(9.7) | 0.66(16.8) | 0.19(4.8) | 0.69(17.5) | 0.75(19.1) | 0.75(19.1) | 0.58(14.7) | 0.44(11.2) |
| 3/8 | 1/4 | VBMC-SS-6-4N | 2.26(57.4) | 0.56(14.2) | 0.66(16.8) | 0.28(7.1) | 0.69(17.5) | 0.75(19.1) | 0.75(19.1) | 0.58(14.7) | 0.44(11.2) |
| 3/8 | 3/8 | VBMC-SS-6-6N | 2.26(57.4) | 0.56(14.2) | 0.66(16.8) | 0.28(7.1) | 0.69(17.5) | 0.75(19.1) | 0.75(19.1) | 0.58(14.7) | 0.44(11.2) |
| 3/8 | 1/2 | VBMC-SS-6-8N | 2.51(63.8) | 0.75(19.1) | 0.66(16.8) | 0.28(7.1) | 0.69(17.5) | 0.87(22.2) | 0.87(22.2) | 0.58(14.7) | 0.44(11.2) |
| 1/2 | 1/8 | VBMC-SS-8-2N | 2.31(58.7) | 0.38(9.7) | 0.90(22.9) | 0.19(4.8) | 0.87(22.2) | 0.94(23.8) | 0.94(23.8) | 0.76(19.4) | 0.50(12.7) |
| 1/2 | 1/4 | VBMC-SS-8-4N | 2.49(63.2) | 0.56(14.2) | 0.90(22.9) | 0.28(7.1) | 0.87(22.2) | 0.94(23.8) | 0.94(23.8) | 0.76(19.4) | 0.50(12.7) |
| 1/2 | 3/8 | VBMC-SS-8-6N | 2.49(63.2) | 0.56(14.2) | 0.90(22.9) | 0.38(9.7) | 0.87(22.2) | 0.94(23.8) | 0.87(22.2) | 0.76(19.4) | 0.50(12.7) |
| 1/2 | 1/2 | VBMC-SS-8-8N | 2.71(68.8) | 0.75(19.1) | 0.90(22.9) | 0.41(10.4) | 0.87(22.2) | 0.94(23.8) | 0.94(23.8) | 0.76(19.4) | 0.50(12.7) |
| 5/8 | 3/8 | VBMC-SS-10-6N | 2.63(66.7) | 0.56(14.2) | 0.96(24.4) | 0.38(9.7) | 1.00(25.4) | 1.06(27.0) | 1.06(27.0) | 0.89(22.6) | 0.59(15.1) |
| 5/8 | 1/2 | VBMC-SS-10-8N | 2.81(71.5) | 0.75(19.1) | 0.96(24.4) | 0.47(11.9) | 1.00(25.4) | 1.06(27.0) | 1.06(27.0) | 0.89(22.6) | 0.59(15.1) |
| 3/4 | 1/2 | VBMC-SS-12-8N | 3.00(76.2) | 0.75(19.1) | 0.96(24.4) | 0.47(11.9) | 1.13(28.6) | 1.19(30.2) | 1.19(30.2) | 1.02(25.8) | 0.66(16.8) |
| 3/4 | 3/4 | VBMC-SS-12-12N | 3.00(76.2) | 0.75(19.1) | 0.96(24.4) | 0.62(15.7) | 1.13(28.6) | 1.19(30.2) | 1.19(30.2) | 1.02(25.8) | 0.66(16.8) |
| 7/8 | 3/4 | VBMC-SS-14-12N | 3.31(84.1) | 0.75(19.1) | 1.02(25.9) | 0.62(15.7) | 1.25(31.8) | 1.31(33.3) | 1.31(33.3) | 1.14(29.0) | 0.75(19.1) |
| 1 | 3/4 | VBMC-SS-16-12N | 3.48(88.4) | 0.75(19.1) | 1.23(31.2) | 0.62(15.7) | 1.50(38.1) | 1.63(41.3) | 1.63(41.3) | 1.33(33.7) | 0.75(19.1) |
| 1 | 1 | VBMC-SS-16-16N | 3.67(93.2) | 0.94(23.9) | 1.23(31.2) | 0.88(22.4) | 1.50(38.1) | 1.63(41.3) | 1.63(41.3) | 1.33(33.7) | 0.75(19.1) |