D38999/26WF35SN
D38999/26WF35SN
Features
- Part Number: D38999/26WF35SN
- Series: MIL-DTL-38999 Series III
- Carries 66 gold-plated socket contacts within a compact size 19 shell
- Olive drab cadmium finish delivers 500-hour salt spray corrosion resistance
- Operates reliably across -65°C to +175°C, suited for extreme climates
- Triple-start quick-coupling thread secures connection in a single turn
- Crimp termination enables fast field installation and easy contact replacement
- Built-in EMI/RFI grounding fingers shield sensitive circuits from interference
- Rated for 5A at up to 550VDC, supporting mixed signal loads
- Mates directly with D38999/24WF35PN receptacle for a verified connector pair
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D38999/26WF35SN — MIL-DTL-38999 Series III Straight Plug (Shell Size 19, 66 Socket Contacts)
D38999/26WF35SN is MIL-DTL-38999 Series III circular connector — a free-hanging (in-line), self-locking straight plug with EMI/RFI grounding fingers, carrying 66 gold-plated crimp socket contacts in shell size 19, with an olive drab cadmium finish for maximum corrosion resistance. It withstands extreme shock, vibration, moisture, and corrosion, and mates via rapid tri-start quick-coupling thread.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer Part Number | D38999/26WF35SN |
| Series | MIL-DTL-38999 Series III |
| Shell Style | /26 — Straight Plug, Free Hanging (In-Line), EMI Grounding Fingers |
| Shell Size | 19 (Letter Code F) |
| Shell Material / Finish | Class W — Aluminum Shell, Olive Drab Cadmium over Nickel |
| Insert Arrangement | 19-35, 66 Positions |
| Number of Contacts | 66 |
| Contact Gender | Socket (Female) |
| Contact Material | Copper Alloy, Gold-plated |
| Contact Standard | SAE AS39029 Removable Crimp Contacts |
| Termination | Crimp |
| Polarization / Keying | N — Normal |
| Coupling Mechanism | Tri-start Threaded Quick Coupling |
| Rated Current | 5 A (Size 22D Contacts) |
| Rated Voltage | 500 VDC / 400 VAC (Service Rating M) |
| Operating Temperature | -65°C to +175°C |
| Salt Spray Resistance | 500 Hours |
How to Read the Part Number
D38999/26WF35SN breaks down as follows:
- D38999/26 — Base MIL-DTL-38999 Series III part number for a free-hanging, self-locking straight plug with EMI/RFI grounding fingers
- W — Shell finish: aluminum, olive drab cadmium over nickel (500-hour salt spray, -65°C to +175°C)
- F — Shell size letter code for shell size 19
- 35 — Insert arrangement, defining a 66-position contact layout (contact count varies by shell size — the same “35” arrangement code yields different contact counts on different shell sizes)
- S — Contact type: socket (female) contacts
- N — Polarization/keying position: normal
Typical Applications
- Military and commercial aerospace wiring harnesses
- Avionics, flight control, and multi-signal data systems
- Radar, shipboard, and ground vehicle electronics
- Ground support and test equipment requiring a mid-to-high density MIL-qualified disconnect
Mating Information
D38999/26WF35SN is a free-hanging plug designed to mate with D38999/24WF35PN — a jam-nut mount receptacle, same shell size 19 and insert arrangement 35, fitted with pin contacts. Always confirm the exact mating part number and finish class against your harness drawing before ordering.
FAQ
1. What does D38999/26WF35SN mean?
It decodes to a MIL-DTL-38999 Series III straight plug (/26), olive drab cadmium finish (W), shell size 19 (F), insert arrangement 35 (66 positions), socket contacts (S), normal keying (N).
2. How many contacts does D38999/26WF35SN have?
66 socket contacts, per insert arrangement 19-35.
3. What is the shell size of D38999/26WF35SN?
Shell size 19 — shown by the letter “F” in the part number (shell size letter codes: A=09, B=11, C=13, D=15, E=17, F=19, G=21, H=23, J=25).
4. What contacts and crimp tools does D38999/26WF35SN use?
It uses standard AS39029/M39029 crimp socket contacts; contacts and the corresponding insertion/removal and crimp tooling are typically ordered separately, unless you choose a version supplied with contacts included.
5. Is there a receptacle version of this connector?
Yes — D38999/24WF35PN is the matching jam-nut mount receptacle (pin contacts), same shell size and insert arrangement, designed to mate with this plug
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Strict Production Process
Engineers develop optimized electronic circuits and structural designs based on real application needs.
High-quality components and materials are carefully selected from trusted suppliers to ensure long-term reliability.
Automated SMT and precision soldering technologies are used to build stable and high-performance circuit boards.
Sensor elements or connector terminals are assembled with the PCB and housing to ensure accurate operation and strong mechanical stability.
Each product undergoes strict calibration and functional testing to guarantee accuracy and stable performance.
Every unit is carefully inspected, labeled, and securely packaged to ensure it arrives safely and performs reliably for your applications.
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