D38999/20WC35SN
D38999/20WC35SN
- Part Number: D38999/20WC35SN
- Series： MIL-DTL-38999 Series III
- Fixed wall-mount flange design provides a stable, permanent panel-mounted connection point
- Carries 22 gold-plated socket contacts within a compact size 13 shell
- Olive drab cadmium finish delivers 500-hour salt spray corrosion resistance
- Operates reliably across -65°C to +175°C, suited for extreme climates
- Crimp termination with #22D contacts enables fast installation and easy rework
- Bolt-through flange mounting simplifies integration into equipment enclosures and bulkheads
- Rated for 5A at up to 550VDC, supporting mixed low-current signal loads
- Shielded construction helps protect connected circuits from electromagnetic interference
- Mates directly with D38999/26WC35PN plug for a verified, ready-to-use pair
- sales@connector-sensor.com
- +86 15120067961
D38999/20WC35SN — MIL-DTL-38999 Series III Wall Mount Receptacle (Shell Size 13, 22 Socket Contacts)
D38999/20WC35SN is a genuineAerospace MIL-DTL-38999 Series III circular connector — a fixed wall-mount flange receptacle, built to be permanently panel- or bulkhead-mounted on equipment enclosures. It carries 22 gold-plated crimp socket contacts in shell size 13, with an olive drab cadmium finish for maximum corrosion resistance.
Unlike a free-hanging cable plug, this receptacle is designed to stay fixed to the equipment housing, providing a stable, quick-disconnect interface for the mating cable plug. Like every D38999 Series III connector, it withstands extreme shock, vibration, moisture, and corrosion in demanding military, aerospace, and industrial environments.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer Part Number | D38999/20WC35SN |
| Series | MIL-DTL-38999 Series III |
| Connector Type | Wall Mount Receptacle |
| Shell Style | /20 |
| Shell Size | 13 (MIL Code C) |
| Shell Material / Finish | Class W — Aluminum Alloy, Olive Drab Cadmium over Electroless Nickel |
| Insert Arrangement | 13-35 |
| Number of Contacts | 22 |
| Contact Gender | Socket (Female) |
| Contact Size | Size #22D |
| Contact Material | Copper Alloy, Gold-plated |
| Contact Standard | AS39029 / MIL-DTL-39029 |
| Termination | Crimp |
| Coupling Style | Threaded |
| Polarization | N (Normal) |
| Mounting | Wall Mount |
| Shielding | EMI Shielded |
| Rated Current | 5 A (Size #22D Contacts) |
| Rated Voltage | 550 VDC / 400 VAC (Typical) |
| Operating Temperature | -65°C to +175°C |
| Salt Spray Resistance | 500 Hours (Class W Finish) |
How to Read the Part Number
D38999/20WC35SN breaks down as follows:
- D38999/20 — Base MIL-DTL-38999 Series III part number for a fixed wall-mount flange receptacle
- W — Shell finish: aluminum, olive drab cadmium over electroless nickel base (500-hour salt spray, -65°C to +175°C)
- C — Shell size letter code for shell size 13
- 35 — Insert arrangement, defining a 22-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
- Fixed panel or bulkhead connections on military and aerospace equipment enclosures
- Avionics line-replaceable units (LRUs) and junction boxes
- Ground vehicle and shipboard electronics chassis interconnects
- Test equipment and ground support systems needing a permanently mounted MIL-qualified interface
Mating Information
D38999/20WC35SN is a wall-mount receptacle and is confirmed to mate with D38999/26WC35PN — a free-hanging straight plug, same shell size 13 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 D38999/20WC35SN mean?
It decodes to a MIL-DTL-38999 Series III wall-mount flange receptacle (/20), olive drab cadmium finish (W), shell size 13 (C), insert arrangement 35 (22 positions), socket contacts (S), normal keying (N).
2.How many contacts does D38999/20WC35SN have?
22 socket contacts, per insert arrangement 13-35.
3.What is the shell size of D38999/20WC35SN?
Shell size 13 — shown by the letter “C” 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’s the difference between D38999/20 and D38999/26 shell styles?
D38999/20 is a fixed wall-mount flange receptacle, designed to be permanently bolted to a panel or bulkhead. D38999/26 is a free-hanging straight plug, designed to terminate a cable and mate with a fixed receptacle. Choose /20 for the equipment side, /26 for the cable side.
5.What contacts and crimp tools does D38999/20WC35SN use?
It uses standard AS39029/M39029 crimp socket contacts, size #22D; contacts and the corresponding insertion/removal and crimp tooling are typically ordered separately.
6.Is there a mating plug for this connector?
Yes — D38999/26WC35PN is the confirmed mating plug (pin contacts), same shell size and insert arrangement, designed to connect to this receptacle.
Send Message to get Datasheet.
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.
Strict Production Process of Yafeite
