SOURIAU 8D521W35PN 79-Pin MIL-DTL-38999 Series III Connector
Manufacturer: Eaton SOURIAU
Series: 8D / MIL-DTL-38999 Series III
Package/Case: Straight Cable Plug, Shell Size 21, Insert 21-35Description: 79-position circular plug with male #22D crimp contacts, olive-drab cadmium-plated aluminium shell and N polarization.
SOURIAU 8D521W35PN 79-Pin MIL-DTL-38999 Series III Connector
The SOURIAU 8D521W35PN is a 79-position straight cable plug from the Eaton SOURIAU 8D connector family. It uses a shell size 21 aluminium housing, olive-drab cadmium finish, male crimp contacts and normal N polarization.
Designed around MIL-DTL-38999 Series III performance requirements, the connector provides a high-density interface for signal and control wiring exposed to vibration, moisture, temperature extremes and electromagnetic interference.
Core Advantages
79-position high-density layout: Accommodates 79 size #22D signal contacts in one shell size 21 circular interface.
Harsh-environment reliability: Provides IP67 sealing, a −65°C to +175°C operating range and resistance to salt spray, vibration and repeated mating.
Secure shielded connection: Threaded coupling and shielding capability support reliable signal transmission in aerospace and defence wiring systems.
Technical Specifications
| Specification | Value |
|---|---|
| Connector standard | MIL-DTL-38999 Series III |
| Connector type | Straight plug |
| Mounting style | Cable mount / free hanging |
| Shell material | Aluminium |
| Shell finish | Olive-drab cadmium |
| Shell size | 21 |
| Insert arrangement | 21-35 |
| Number of positions | 79 |
| Contact arrangement | 79 × size #22D |
| Contact gender | Pin / male |
| Termination method | Crimp |
| Contact plating | Gold |
| Polarization | N, normal |
| Coupling system | Threaded |
| Shielding | Shielded configuration |
| Environmental protection | IP67 |
| Operating temperature | −65°C to +175°C |
| Mating durability | 500 cycles |
| Salt-spray resistance | 500 hours |
| Working voltage | Up to 1300 Vrms |
| Approximate dimensions | 41.7 × 41 × 41 mm |
| Approximate weight | 45 g |
| Equivalent military reference | D38999/26WG35PN |
Compatible Mating Connectors
The mating receptacle must use the same shell size 21, insert arrangement 35 and N polarization, with female socket contacts.
| Compatible model | Connector style | Contact configuration |
|---|---|---|
| 8D021W35SN | Square-flange receptacle | 79 female socket contacts |
| 8D721W35SN | Jam-nut receptacle | 79 female socket contacts |
| D38999/20WG35SN | MIL square-flange receptacle | 79 female socket contacts |
| D38999/24WG35SN | MIL jam-nut receptacle | 79 female socket contacts |
Applications
Aerospace Avionics
The 79-contact layout supports high-density signal connections between avionics units, flight-control systems, navigation equipment and aircraft wiring harnesses.
Military Communication Systems
Shielding and secure threaded coupling make the connector suitable for radar, radio, command, surveillance and electronic-warfare equipment.
Ground and Naval Platforms
Environmental sealing and corrosion-resistant plating support wiring connections in military vehicles, naval electronics and mobile control systems.
Sensors and Data Acquisition
The high contact count allows multiple sensor, monitoring and low-current control circuits to be consolidated into one circular interface.
Test and Ground-Support Equipment
A 500-cycle mating rating supports systems that require repeated connection during testing, maintenance and equipment integration.
Request a Quote for 8D521W35PN
Contact us for the latest SOURIAU 8D521W35PN stock, price and lead time. We can also help verify the mating receptacle, crimp contacts, backshell options and D38999/26WG35PN cross-reference before ordering.
