D38999/20WJ20SB Electric Circular Aviation Connector 20 Pin Shielded Industrial Electrical Receptacle Socket
Negotiable, based on purchase quantity
MOQ: 1 Piece
20‑Position Multi‑contact Layout
Standard 20‑cavity insulation insert, compatible with separable crimp‑type gold‑plated contacts, meets diversified signal and power transmission demands.
Durable Anti‑corrosion Metal Housing
High‑strength aluminium‑alloy shell with surface anti‑oxidation treatment, square flange‑mount structure for easy panel installation.
Excellent Electrical Conductivity
Copper‑alloy contacts with premium gold‑plated finish, low contact‑resistance, great oxidation‑proof performance for long‑time stable conduction.
Stable Bayonet Quick‑lock Structure
One‑hand fast bayonet coupling, firm locking against loosening caused by frequent mechanical vibration.
Wide Operating Temperature Adaptability
Works reliably under ‑55℃~+175℃ extreme temperature environment, fit for harsh‑condition industrial‑grade equipment.
Removable Contact‑pin Design
Contacts can be freely assembled or replaced with matched extraction tools, convenient for on‑site wiring, inspection and later‑period maintenance.
Reliable Dust‑proof & Moisture‑proof Sealing Performance
Built‑in multi‑layer sealing ring blocks dust, dampness and pollutants intrusion, suited for outdoor and heavy‑duty working scenarios.
Wide Compatibility for Industrial‑grade Equipment
Perfectly adapted to automated machinery, transit hardware, precision testing instruments and high‑end electronic connection systems
Product pictures
Shop high‑performance D38999/20WJ20SB round connector, 20‑pin metal housing circular plug‑in connector with gold‑plated contacts, durable for aerospace equipment, transit machinery and heavy‑duty industrial connection.
These real‑shot pictures display the complete accessories of the D38999/20WJ20SB multi‑hole circular connector.All matched terminals can be freely assembled and replaced, and the dedicated release tools help quick contact installation and removal during wiring work.
Product description
The D38999/20WJ20SB belongs to the popular D38999‑series heavy‑duty circular connector. It is a 20‑position flange‑mounted receptacle connector widely adopted for high‑reliability signal and power connection in sophisticated industrial machinery, aviation‑grade facilities, railway transit, marine devices and automated‑control systems.
This round connector adopts robust metal shell for shock‑proof and anti‑corrosion capacity. Its separable gold‑plated socket pins deliver stable electrical conductivity and excellent oxidation‑resistance. The detachable contact‑pin structure brings great convenience for cable wiring, part replacement and routine maintenance.
Built‑in sealing structure blocks moisture, dust and pollutant intrusion. It can work steadily under frequent vibration, wide‑range temperature fluctuation and harsh outdoor working surroundings. Multiple matched extraction tools and spare contact terminals are supplied for convenient field assembly.
Workshop
We run a full‑chain manufacturing plant dedicated to all kinds of industrial connector goods. Every single component you see on our finished items gets crafted right on‑site by our own workshop crews.
Our in‑house workshops handle CNC turning for metal connector shells. We’ve got a small, skilled mould‑making team that works on custom tooling design. A big collection of finished mould templates is stored onsite, which helps us churn out insulating parts and silicone rubber accessories. All the core mechanical pieces‑‑contact springs, mating ports and anti‑interference shield springs‑‑are produced locally within our factory space.
We built dedicated working stations to stamp and shape our metal contact terminals. Every terminal piece is made to satisfy the requirements laid down in the international M39029 industry standard. When our factory first got off the ground, most of our manufactured parts went to supply the AVIC Group.
Our long‑time assembly workers carry out careful inspections during every production stage. They make certain every finished‑off connector meets the strict criteria of the MIL‑DTL‑38999 military‑grade specification.
Exhibition
Great client service is something our team always prioritizes. We aim to deliver a pleasant buying journey for every overseas partner. We make regular trips to major electronics trade fairs around the industry. These in‑person meet‑ups make it simple for us to chat with buyers, gather real‑world usage feedback and work out ways to refine our goods. Face‑to‑face conversations like these allow us to build dependable, long‑lasting business partnerships with clients all over the world.
Package
Wondering how we pack connectors before shipment? Let me walk you through our real packing routine step by step.
First off, every unit gets wrapped with soft tough anti-scratch foam right before leaving our workshop. Rough highway and sea shipping always bring bumps and friction, and this foam keeps metal shells free of ugly scratches that often come from poor packaging.
After foam wrapping, we place each connector into a separate ESD sealed box. These internal pins and inserts are extremely delicate; static electricity can burn out tiny parts without visible signs. This sealed box blocks static risk entirely, and it’s one of our most important protective steps.
Our packing team will double-check every finished package manually. Only confirmed good items go into reinforced dedicated cartons. We print part number, batch count and total quantity clearly on carton surfaces, so your warehouse team can sort and stock goods quickly once delivery arrives.
You can pick international express, air freight or sea shipping freely. Our logistics team adjusts arrangements fully to match your preferred delivery method.
All outer cartons go through extra reinforcement work. They resist compression and shock far better than ordinary generic cartons.
Long cross-border shipments always have shaking and squeezing on the way. Our layered packing design absorbs most impact, cuts transit damage greatly, and makes sure every single connector lands intact at your site.
| Housing Type | Square flange‑mount metal receptacle shell |
| Contact Material | Copper alloy with gold‑plated surface |
| Insert Material | High‑strength insulated plastic |
| Shell Material | Light‑weight anti‑corrosion aluminium alloy |
| Connection Mode | Bayonet quick‑lock coupling |
| Shock‑resistant Standard | Adapt to high‑frequency mechanical vibration environment |
| Wiring Structure | Removable crimp‑type contact pins, tool‑assisted pin installation and removal |
| Applicable Field | Industrial automation, transport equipment, precision instrument, offshore machinery and high‑end electronic‑device connection |
Why choose us?
1. With its own molds, it can achieve large-scale production. The molds have been repeatedly finely engraved, ensuring the insulation structure and quality from the very beginning!
2. We have professional shell processing manufacturers. The shell materials and structures are completely consistent with Amphonel and fully comply with the MIL-DTL-38999 standard.
3. We have our own contact component production line. The quality of the contact components fully meets the M39029 standard!
4. Our workers have undergone strict training and produce according to the production process of standard connectors strictly.
5. After all products are assembled, each product will undergo individual quality inspection and then be packaged and shipped.
FAQ:
1. who are we?
We are based in Henan, China, start from 2025,sell to Mid East(50.00%),Domestic Market(30.00%),Southeast Asia(20.00%). There are total about 51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
MIL-DTL-38999 Series connectors,militray connectors,Aorespace connectors,MS27484 series connector,Arinc 600 Series connectors
4. why should you buy from us not from other suppliers?
Our engineering team is come from AVIC, and we have a specialized R & D team for product development. With a wealth of ready - made molds, we can ensure large - scale production. To guarantee product quality, we have inspection equipment and a laboratory.
5. what services can we provide?
Accepted Delivery Terms: FOB,CIF,EXW,Express Delivery；
Accepted Payment Currency:null;
Accepted Payment Type: T/T,L/C,D/P D/A;
Language Spoken:English
