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The 4-pin waterproof aviation connector is a compact four-contact circular connector for housings that only need a few circuits — a camera with lights, a single sensor, or a small actuator. Same machined stainless steel construction as the larger sizes in the series, scaled down.
Basic Info.
| Gender | Male / Female (per model) |
| Application | Underwater / subsea equipment, ROV & AUV, marine instrumentation, ocean engineering |
| Certification | RoHS, CE, ISO9001 |
| Customization | Available — OEM/ODM (pin count, cable length, interface, logo) |
| MOQ | 1 piece (trial order welcome) |
| Transport Package | Export carton |
| Lead Time | To be negotiated (per quantity and customization) |
| Shipping | DHL / FedEx / UPS / TNT express; air or sea freight for bulk orders |
Product Highlights
- 4 contacts, small envelope: four gold-plated contacts in the smallest shell of the series where wall space is tight.
- Simple, reliable sealing: O-ring face seal with a potted pigtail exit — few parts, few failure points.
- Threaded coupling: the plug locks with a coupling nut, so vibration and handling cannot work the pair loose.
- Factory-numbered pigtail: cores are sleeved and numbered before shipping to speed up harness work.
Key Specifications
| Contact arrangement | 4 pins (male) / 4 sockets (female) |
| Contact plating | Gold-plated copper alloy |
| Shell material | Stainless steel (316L on request) |
| Sealing | O-ring face seal + potted cable exit |
| Mounting | Threaded bulkhead / panel mount |
| Termination | Pigtail wires, individually sleeved |
| Rated depth | Per datasheet — contact us with your operating depth |
| Current / voltage rating | On request |
Structure & Sealing
The receptacle body screws through the housing wall and compresses its face O-ring when tightened. Four contacts sit in a potted insulating insert; the pigtail exits through a strain-relieved, sealed rear. The plug mates axially and locks with a threaded coupling ring.
Applications
- Underwater camera and lamp housings
- Small ROV accessory pods
- Hydrophones and single-sensor bottles
- Battery packs and charger interfaces
Customization & OEM
- 2 / 3 / 5 / 6-pin variants on the same footprint
- Shell material options
- Cable type and tail length to order
- Custom thread per your housing drawing
Packaging & Delivery
Each connector is shipped in an ESD-safe bag with a protective cap on the mating face, packed in a foam-lined carton. Lead time depends on configuration and quantity — contact us for a current schedule. DHL / FedEx / air / sea freight supported.
FAQ
Is this suitable as a camera power + video pass-through?
Yes, four circuits are a common arrangement for camera power, ground and signal pairs. Send us the circuit list to confirm contact ratings.
Can the connector be supplied with cable attached?
Yes, we supply connectorized tails with the cable of your choice.
What is the minimum order?
Sample quantities are welcome; volume pricing applies above a threshold — contact us.
How is it packed?
ESD bag with protective caps on the mating faces, foam-lined export carton.