All Series

J599HL Series

High-durability variant of J599 Series III with extended service life contacts rated for 5,000+ mating cycles. MIL-DTL-38999 compliant with enhanced plating and anti-corrosion treatment.

AVIC J599T Series

AVIC-developed J599 variant optimized for Chinese military aviation platforms. Intermateable with MIL-DTL-38999 Series III, featuring lightweight composite shells and gold-plated contacts.

J599HR Series

High-reliability J599 connectors with redundant sealing and enhanced vibration resistance. Designed for helicopter, UAV, and ground vehicle applications requiring MIL-DTL-38999 compatibility.

J599-801 Series

Specialized J599 variant with integrated EMI/RFI filtering and transient voltage suppression. For avionics and communication systems requiring conducted emission control.

J599G Series

General-purpose J599 circular connectors with cost-optimized design for industrial and ground support applications. Maintains full MIL-DTL-38999 intermateability.

GJB599 Series I

Chinese military standard GJB599 Series I connectors — bayonet coupling, rear-release crimp contacts. Equivalent to MIL-DTL-38999 Series I. For aerospace and defense platforms.

GJB599 Series III

Chinese military standard GJB599 Series III connectors — triple-start threaded, 100% scoop-proof. Full intermateability with MIL-DTL-38999 Series III. Aluminum and composite shell options.

ZH8525 Series

High-density miniature circular connectors based on Russian-standard ZH series. Push-pull self-locking, IP68 rated, for harsh environment signal and power in compact form factors.

1784R Series

Russian-standard 1784R circular connectors with threaded coupling, hermetically sealed options. Designed for aerospace pressure bulkhead and fuel tank passthrough applications.

Y27 Series

Multi-pin circular connectors with bayonet locking, compliant with Chinese Y27 standard. Widely used in communication equipment, test instrumentation, and ground support systems.

GDM Series Optical

Optical fiber connector series for military and industrial data links. Expanded beam and physical contact (PC) variants. Single-mode and multimode, 2–24 channels, MIL-PRF-29504 terminals.

Small Self-Locking Connectors

Miniature push-pull self-locking circular connectors with 2–19 contacts. Ideal for medical devices, instruments, UAV payloads, and portable military equipment requiring quick connect/disconnect.

Anti-Static Connectors

ESD-protected connectors with integrated discharge paths and static-dissipative materials. For explosive atmosphere, fuel system, and ordnance handling applications. MIL-STD-1686 compliant.

Lightning Protection Connectors

Connectors with integrated surge protection devices for direct and indirect lightning effects. RTCA/DO-160 Section 22 compliant. For aircraft external sensors, antennas, and fuel quantity systems.

Anti-EMI Connectors

Filtered connectors with built-in C, L, Pi, and T-section EMI filters. Insertion loss > 60 dB from 10 MHz to 18 GHz. For RADAR, EW, and secure communication systems requiring emission control.

Expanded Beam Optical Fiber

Lens-expanded beam fiber optic connectors immune to dust and vibration. Insertion loss < 1.5 dB, 2–12 channels. Ideal for tactical field-deployed fiber links, military vehicles, and broadcast.

FB Series Explosion-Proof

Explosion-proof connectors certified to ATEX/IECEx Zone 1 and 2. Flameproof enclosure (Ex d) and intrinsic safety (Ex i) variants. For oil & gas, chemical plants, and mining environments.

High Temperature / High Pressure Connectors

Connectors rated for simultaneous 260°C and 30,000 psi. Metal-to-metal seals, no elastomers. For downhole oil tools, geothermal instrumentation, and supercritical fluid systems.

GRT Series High Temperature Sealed

Hermetically sealed GRT connectors with glass-to-metal compression seals. Leak rate < 1×10⁻⁹ cc/sec He. Rated -65°C to +260°C with Inconel and stainless steel shells for extreme environments.

RF599 High Frequency Electrical

RF/microwave connector series with precision impedance control. DC to 26.5 GHz, 50 Ω. SMA, TNC, and N-type interfaces with MIL-DTL-38999 shell integration for combined RF+signal+power.

PLC Series Optical Splitter

Planar lightwave circuit splitters in ruggedized connectorized packages. 1×N and 2×N configurations up to 1×64. For FTTx networks, fiber sensing, and military fiber optic distribution panels.

Wireless On/Off Detector

Wireless connector engagement sensors for remote monitoring of connection status. Inductive proximity, RFID, and Bluetooth LE variants. For unmanned systems, remote installations, and condition-based maintenance.

Digital Contact Retention Force Detector

Precision digital instruments for measuring and verifying contact retention force per MIL-DTL-38999 and EN 2591. Load cell accuracy ±0.1 N, data logging via USB. For quality assurance and incoming inspection.

PJ Series Ground Power Electrical

High-current ground power connectors rated 400 A continuous, 800 A surge. For aircraft ground support equipment, GPU carts, and ship-to-shore power. Silver-plated contacts with arc-resistant inserts.

SPQ4 Series Quick Locking Rectangular

Quick-locking rectangular connectors with push-pull latch mechanism. Blind-mate capable, 9–50 contacts, mixed power/signal. For avionics racks, modular payloads, and field-replaceable LRUs.

J7245 Micro Pitch Electrical

Micro-miniature rectangular connectors with 0.635 mm contact pitch. Up to 100 positions, board-to-board and wire-to-board. For space-constrained avionics, wearable military electronics, and FPGA mezzanine.

MK4 Series

MK4 Series miniature circular connectors with threaded coupling, 3–12 contacts. Aluminum alloy shell with olive drab cadmium or electroless nickel plating. For military vehicle intercom and field radio connections.

1553B Data Bus Products

MIL-STD-1553B data bus connectors, couplers, terminators, and cable assemblies. Transformer-coupled stub and bus couplers. Twinax contacts per MIL-DTL-38999. For avionics data networks.

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All 37 Models

Complete list of Circular Connectors — click any model for full specifications, pricing, and official manufacturer part numbers (MPN).

1553B Data Bus Products — Circular Connector 1784R Series — Circular Connector 1784R Series — Aerospace & Defense Circular Connector Anti-EMI Connectors — Circular Connector Anti-Static Connectors — Circular Connector AVIC J599T Series — Circular Connector Digital Contact Retention Force Detector — Circular Connector Expanded Beam Optical Fiber — Circular Connector Expanded Beam Optical Fiber — Contamination-Resistant Connector FB Series Explosion-Proof — Circular Connector GDM Series Optical — Circular Connector GDM Series — Optical Fiber Circular Connector GJB599 Series I — Circular Connector GJB599 Series I — Chinese Military Bayonet Connector GJB599 Series III — Circular Connector GJB599 Series Ⅲ — Chinese Military Threaded Connector GRT Series High Temperature Sealed — Circular Connector High Temperature / High Pressure Connectors — Circular Connector J599-801 Series — Circular Connector J599-801 Series — Environmental Resistant Connector J599G Series — Circular Connector J599G Series — High-Performance Circular Connector J599HL Series — Circular Connector J599HR Series — Circular Connector J599HR Series — High Reliability Circular Connector J7245 Micro Pitch Electrical — Circular Connector Lightning Protection Connectors — Circular Connector MK4 Series — Circular Connector PJ Series Ground Power Electrical — Circular Connector PLC Series Optical Splitter — Circular Connector RF599 High Frequency Electrical — Circular Connector Small Self-Locking Connectors — Circular Connector SPQ4 Series Quick Locking Rectangular — Circular Connector Wireless On/Off Detector — Circular Connector Y27 Series — Circular Connector Y27 Series — Compact High-Density Circular Connector ZH8525 Series — Circular Connector