Built to Survive. Engineered by XACT EMS.
For over 25 years, XACT EMS has been a trusted partner in delivering mil-spec overmolded cable assemblies featuring MIL-DTL-38999 connectors. These rugged assemblies are built to perform in the world’s most punishing environments — from deep offshore rigs to aerospace engine bays, and defense communications to mobile mining platforms.
We specialize in full-lifecycle cable assembly solutions, with in-house capabilities in overmolding, booting, machining, and harness design. Our assemblies are engineered to meet or exceed military and industrial standards, ensuring maximum reliability under stress.
What is MIL-DTL-38999?
MIL-DTL-38999 connectors are high-performance, circular connectors engineered for high-reliability and ruggedized interconnect systems. These connectors are used extensively in aerospace, defense, transportation, oil & gas, and mining where vibration, moisture, thermal cycling, and EMI/RFI exposure are critical challenges.
- Multi-contact, high-density layouts
- EMI/RFI shielding capabilities
- Coupling mechanisms: threaded, bayonet, and breech
- Shells in composite, aluminum, stainless steel
- Extensive insert arrangements and keying options
Industry-Specific Connector Reference Tables
Below are non-exclusive samplings of commonly used MIL-DTL-38999 connectors across industries. These are representative of popular selections for ruggedized, mil-spec assembly applications.
Aerospace
| Manufacturer | Series Name | Common Part Numbers | Connector Features | Typical Applications |
|---|---|---|---|---|
| Amphenol | D38999 Series III | D38999/26WE6SN, D38999/24WB35PN, TV07RW-13-35P, TV07RW-11-99P, D38999/20WE26SN | Triple-start threaded coupling, EMI shield termination, high-vibe resistant | Avionics, engine sensors, flight control actuators |
| Glenair | Series 80 Mighty Mouse | 801-007-07ZNU6-61, 801-009-07ZNU6-09, 801-010-16ZNU6-12, 801-011-16ZNU6-12, 801-002-07ZNU6-9 | Ultra-lightweight, quick-disconnect, miniature circular format | Instrument clusters, aerospace sensor buses |
| Souriau | 8D Series | 8D0A20F35PN, 8D0A17F35SN, 8D0A11F35SN, 8D5M20F35SN, 8D1F13F35PN | Composite/aluminum shells, multiple finishes, bayonet/locking options | Antenna systems, GPS/INS, control units |
| ITT Cannon | KJA Series | KJA0T17F35PA, KJA0F13F35SN, KJA0T19F35PN, KJA0F15F35SN, KJA0T11F35PN | QPL-qualified, fully intermateable with Series III, environmental sealing | Flight computers, navigation systems |
| TE / DEUTSCH | DTS Series | DTS24W15-35SN, DTS26F13-35SN, DTS20F17-99PN, DTS24W11-35SN, DTS20F21-35SN | Proven corrosion resistance, bayonet coupling, high-vibration | Environmental monitoring, cabin pressure controls |
Defense / Military
| Manufacturer | Series Name | Common Part Numbers | Connector Features | Typical Applications |
|---|---|---|---|---|
| Amphenol | D38999 Series I | D38999/24WB35PN, D38999/24WD19SN, D38999/24WE6PN, D38999/24WB98PA, D38999/24WD35PN | Bayonet coupling, high-speed signal support, EMI gaskets | Radios, tactical communication, vehicle wiring |
| Glenair | Series 23 | 233-108-07ZNU6-9, 233-147-11ZNU6-5, 233-105-07ZNU6-9, 233-148-07ZNU6-9, 233-109-07ZNU6-9 | Heavy-duty field-ready shell, environmental grommet seals, 360° EMI shield clamp | Soldier-worn gear, battery interconnects, optics |
| Souriau | 8D Series | 8D5M20F35SN, 8D0A11F35SN, 8D0J13F35PN, 8D0F17F35SN, 8D0J17F35PN | QPL-qualified, dual start thread, corrosion resistant plating | Electronic warfare, surveillance, missile guidance |
| ITT Cannon | KJB Series | KJB0T17F35PN, KJB0F15F35SN, KJB0T11F35PN, KJB0F13F35PN, KJB0T19F35SN | Zinc-nickel plating, robust coupling nut, IP67 sealed | Ruggedized field terminals, ground control units |
| TE / DEUTSCH | DTS Series | DTS20F19-32SN, DTS24W11-35SN, DTS24W15-99SN, DTS24F13-35PN, DTS20F15-35PN | Multiple insert layouts, lightweight composite body, vibration resistance | UAV control, rugged handhelds, fire control |
Oil & Gas / Marine
| Manufacturer | Series Name | Common Part Numbers | Connector Features | Typical Applications |
|---|---|---|---|---|
| Amphenol | D38999 Series III | D38999/20WB98PA, D38999/26WE26SN, TV07RW-13-35P, D38999/24WB35PN, D38999/26WB35SN | Salt spray resistance, stainless steel shells, overmold compatible | Subsea electronics, ROVs, hydraulic control systems |
| Glenair | Mighty Mouse | 801-013-07ZNU6-09, 801-010-07ZNU6-09, 801-011-07ZNU6-09, 801-014-07ZNU6-09, 801-009-07ZNU6-09 | Small form factor, rugged elastomeric seals, moisture sealing | Downhole tools, pipeline monitoring systems |
| Souriau | 8D Series | 8D0J35F61PN, 8D0A13F35PN, 8D1F21F35PN, 8D0F11F35PN, 8D0A17F35SN | Shell-to-shell continuity, nickel and RoHS plating, IP68 rated | Mud pulse telemetry, MWD systems |
| ITT Cannon | KJA Series | KJA0F17F35SN, KJA0F15F35SN, KJA0T13F35SN, KJA0F13F35SN, KJA0T17F35PN | Hermetically sealed inserts, thermal shock resistant | Offshore platforms, vibration-prone pump interfaces |
Rail / Transportation
| Manufacturer | Series Name | Common Part Numbers | Connector Features | Typical Applications |
|---|---|---|---|---|
| Amphenol | D38999 Series III | TV07RW-17-35P, D38999/20WB98PN, D38999/24WE26PN, TV07RW-11-35PN, D38999/26WE35SN | Long-term vibration tolerance, overmold-friendly, IP67 sealing | Brake sensors, signal control, train interface units |
| Glenair | Series 23 | 233-147-11ZNU6-5, 233-105-07ZNU6-9, 233-148-07ZNU6-9, 233-110-07ZNU6-5, 233-130-07ZNU6-9 | Low smoke/zero halogen boots, flame-retardant insulation | Rail signaling, door control systems |
| ITT Cannon | CA Bayonet | CA3106R20-29P, CA3108R18-1S, CA3102R20-27P, CA3106E20-29P, CA3102E20-27S | Classic bayonet lock, widely fielded, affordable and rugged | Train diagnostics, low-voltage signaling |
| TE / DEUTSCH | DTS Series | DTS26F13-35SN, DTS24W13-35PN, DTS20F17-99PN, DTS20F11-35SN, DTS24W11-35SN | Resistance to oil, vibration, dirt ingress | Power distribution boxes, cabin controls |
Mining & Industrial Equipment
| Manufacturer | Series Name | Common Part Numbers | Connector Features | Typical Applications |
|---|---|---|---|---|
| Amphenol | D38999 Series III | D38999/24WE35SN, D38999/26WE6PN, D38999/24WB35PN, D38999/20WE35SN, D38999/24WD35PN | Machined shells, hydrocarbon-resistant backshells, reinforced threading | Mobile power systems, ruggedized cameras |
| Glenair | Mighty Mouse | 801-011-07ZNU6-09, 801-014-07ZNU6-09, 801-010-07ZNU6-09, 801-002-07ZNU6-9, 801-009-07ZNU6-9 | Compact & impact-resistant, heavy-duty elastomers, rapid-coupling | Equipment diagnostics, HMI field panels |
| Souriau | 8D Series | 8D1F21F35PN, 8D0A17F35PN, 8D0F13F35PN, 8D0J15F35PN, 8D0J17F35PN | -55°C to +175°C range, IP68 sealed, conductive flange | Shock-proof control circuits, onboard interfaces |
| ITT Cannon | KJB Series | KJB0T15F35PN, KJB0F13F35SN, KJB0T17F35SN, KJB0T19F35PN, KJB0T11F35SN | Crimp/solder contact support, low-outgassing, machined shells | Dragline machinery, sensor nodes |
Why Choose XACT EMS?
XACT EMS is your single-source partner for ruggedized, mil-spec overmolded connector assemblies. From concept to completion, we specialize in building harnesses that perform in the most extreme environmental, mechanical, and thermal conditions.
Our Capabilities Include:
- Custom overmolded cable assemblies
- In-house molding & tooling – one of the largest mold libraries in the industry
- Heat-shrink & molded boots in stock (variety of styles and materials)
- Full-scale wire harness design, assembly, and testing
- Manufacturing in both Houston, Texas 🇺🇸 and Calgary, Alberta 🇨🇦
- ITAR, NIST, CMMC Level 2, JPC, CGP & AS:9100 compliance
Ruggedization Built In:
- Resistance to vibration, thermal cycling, corrosion, UV, fuel, saltwater
- Impact-resistant overmolded strain relief
- High IP-rated sealing and material performance
- Proven performance in field deployments
