M85049-39-11N Circular Connector Backshell 11# Shell Strain Relief Cable Clamp Connector
The JGB599 III Series MIL-DTL-38999 III EMI Shielded Circular Connector is a compact, lightweight, high-density connector designed for electrical signal connection in harsh environments. It features triple-start threaded quick coupling, anti-loosening locking, EMI shielding, removable contacts, and anti-misalignment insertion protection.
This series is available with aluminum alloy, stainless steel, or titanium alloy shells, thermosetting or thermoplastic insulators, and silicone rubber seals. Plating options include W cadmium green, F chemical nickel, K stainless steel passivation, FT aluminum alloy nickel plating, and TA titanium alloy.
The connector supports press-fit, solder, and PCB contact types, with fiber optic contact compatibility in 12# and 16# positions and coaxial or shielded contact compatibility in 12#, 10#, and 8# positions. It is widely used in aerospace systems, defense electronics, industrial control equipment, communication systems, and rugged signal interconnection applications.
| Shell No. | A | Thread B | C | D(min) | D(max) | E(max) | L(max) |
|---|---|---|---|---|---|---|---|
| 09 | 18.0 | M12*1 | 20.6 | 2.49 | 5.94 | 21.6 | 29.5 |
| 11 | 21.0 | M15*1 | 22.0 | 3.87 | 5.94 | 22.8 | 29.5 |
| 13 | 24.0 | M18*1 | 23.6 | 4.83 | 8.33 | 26.0 | 31.9 |
| 15 | 28.0 | M22*1 | 25.2 | 6.60 | 11.61 | 29.0 | 35.1 |
| 17 | 31.0 | M25*1 | 26.8 | 7.19 | 15.60 | 30.6 | 39.1 |
| 19 | 34.0 | M28*1 | 31.3 | 8.26 | 16.10 | 37.0 | 41.5 |
| 21 | 37.0 | M31*1 | 32.9 | 8.71 | 17.73 | 39.0 | 43.3 |
| 23 | 40.0 | M34*1 | 34.5 | 9.68 | 20.90 | 41.0 | 46.5 |
| 25 | 43.0 | M37*1 | 36.1 | 10.62 | 21.66 | 42.0 | 47.1 |
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