J599/20FB35SB | MIL-DTL-38999 Series III Circular Connector – AVIA Electronics
J599/20FB35SB is a MIL-DTL-38999 Series III high reliability wall mount receptacle circular connector for aerospace, military and harsh industrial applications. Contact us for stock, samples and custom connector solutions.
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Product Overview
The J599/20FB35SB is a high‑reliability circular connector designed for demanding military, aerospace, and industrial applications. Engineered for dependable performance in harsh operating environments, this connector is suitable for systems where secure electrical connections, mechanical strength, and environmental durability are essential.
This part number identifies a wall‑mount receptacle within the MIL‑DTL‑38999 Series III family of high‑performance circular connectors. The MIL‑DTL‑38999 Series III is designed to support reliable electrical interconnection in demanding applications, offering robust threaded coupling, secure contact retention, and configurations suited to different installation and wiring requirements.
With its rugged construction and high‑reliability design, the J599/20FB35SB is suitable for applications requiring dependable connectivity under vibration, temperature variations, and other challenging environmental conditions. For precise configuration details, including shell size, 35‑position contact arrangement, socket contact type, and shell finish, please refer to the applicable product datasheet.
Part Number Breakdown
Stock & Availability
In Stock / Factory Lead Time
At AVIA Electronics, we understand that your project timelines depend on component reliability. To support your mission-critical operations, we maintain a proactive inventory strategy for the J599/20FB35SB and our broader line of high-reliability connectors.
In-Stock (Ready to Ship): Contact our sales team to confirm current availability of the J599/20FB35SB. Once stock is confirmed, orders are processed and dispatched according to the agreed delivery schedule, helping minimize downtime for your production or maintenance operations.
Factory Lead Time: For large-volume requirements of the J599/20FB35SB or items requiring production, we provide project-specific lead-time estimates. We coordinate manufacturing and order fulfillment to support your delivery requirements, with updates throughout the process.
Supply Assurance: We prioritize long-term supply stability for our clients. If you require scheduled deliveries, bulk kitting, or buffer stock of the J599/20FB35SB for multi-phase projects, our logistics team can coordinate a tailored supply plan aligned with your project milestones.
Multiple shell sizes available
The J599/20FB35SB is part of the MIL-DTL-38999 Series III high-reliability circular connectors, designed for dependable performance across demanding system architectures. We understand that your designs require consistency; therefore, our connector solutions are available in a range of shell sizes and contact configurations to support different mechanical and electrical requirements.
Comprehensive Configuration Options: While the J599/20FB35SB represents a specific configuration, the broader MIL-DTL-38999 Series III offers multiple shell sizes, contact arrangements, and connector configurations to accommodate applications ranging from compact equipment interfaces to complex aerospace and defense systems. Please consult the applicable datasheet to verify the exact configuration and compatibility requirements.
Secure Coupling and Reliable Connections: MIL-DTL-38999 Series III incorporates a threaded coupling design intended to provide secure mating in demanding environments. This helps maintain reliable connections in applications subject to vibration and mechanical stress.
Precision Engineering: Designed for high-reliability applications, MIL-DTL-38999 Series III supports demanding environmental and operational requirements. When selecting the J599/20FB35SB, verify its electrical ratings, environmental specifications, and dimensional details against the official product documentation to ensure suitability for your system.
Custom configurations supported
At AVIA Electronics, we recognize that off-the-shelf components may not always meet the unique demands of your high-performance systems. While the J599/20FB35SB represents a specific high-reliability connector configuration, we offer engineering support to help identify suitable connector solutions for your application and integration requirements.
Customized Contact Configurations: If your project requires a specific contact arrangement or a combination of power and signal connections, our team can help evaluate suitable configurations within the MIL-DTL-38999 Series III based on your electrical and mechanical requirements.
Specialized Plating & Material Options: Depending on availability and technical feasibility, we can assist in identifying shell materials and surface finishes suited to your operating environment, including requirements for corrosion resistance, electromagnetic compatibility, and weight optimization.
Installation & Mechanical Integration: For space-constrained installations, we can help identify compatible mounting arrangements, backshells, and accessories to support your equipment layout and simplify connector integration.
Accessory Sourcing & Kitting: We can coordinate the supply of compatible accessories, such as backshells, protective caps, and other connector components, subject to availability and compatibility verification, helping streamline procurement and assembly.
Contact AVIA Electronics with your drawings, technical specifications, or project requirements so our team can evaluate a suitable solution for your application.
Sample Policy & Flexible Order Support
At AVIA Electronics, we provide high-reliability interconnect solutions designed to support demanding engineering applications. To help you evaluate whether the J599/20FB35SB meets your project requirements, we offer sampling support for prototype development and technical evaluation.
Sample Availability: Samples of the J599/20FB35SB may be available for engineering evaluation, fit verification, and prototype testing. Sample pricing and availability are confirmed upon request, allowing you to assess the connector’s suitability before proceeding with larger orders.
No Minimum Order Quantity (No MOQ): We support projects at different development stages, from initial prototyping to production. Contact our sales team to discuss small-quantity orders and confirm the available purchasing options for the J599/20FB35SB.
Secure Fulfillment: We take care to ensure that sample orders are handled and packaged appropriately for shipment. Delivery arrangements and estimated dispatch times are confirmed during order processing to help you plan your engineering evaluation and project schedule.
Logistics & Distribution Services
AVIA Electronics utilizes a reliable distribution framework to ensure the secure and accurate delivery of components to global destinations. Shipping options available for your order are calculated and displayed during the checkout process based on your specific requirements.
Supported Carriers & Services
We partner with established logistics providers to offer a range of delivery solutions:
Express Carriers: DHL, UPS, FedEx, SF Express
Postal & Standard Services: Belgium Post, Global Direct Standard Line, Registered Mail
Shipping Cost Calculation
Shipping charges are dynamically calculated at checkout to ensure accuracy. The final cost is determined by the following variables:
Package Weight: The total combined weight of the products and necessary protective packaging.
Service Selection: Costs vary depending on the chosen carrier and the selected service level (e.g., expedited express vs. standard delivery).
Destination: Rates are adjusted based on the specific country or region of delivery.
Technical Specifications
Basic Info.
|
Model NO. |
J599/20FB35SB |
|---|---|
|
Application |
Industrial Automation |
|
Contact Material |
Copper |
|
Shell Material |
Aluminum alloy |
|
Shell Size |
11 |
|
Termination Style |
Crimp |
|
Contact Plating |
Gold |
|
Transport Package |
Standard Expect Package |
|
Origin |
China |
|
Production Capacity |
100000 |
|
Certification |
ISO 9001, ISO 14001, ISO 45001, CE, RoHS, REACH, IP68, 500-Hour Salt Spray Tested |
|---|---|
|
Contact Resistance |
≤ 12.0(mΩ) |
|
Surface Treatment |
Electroless nickel plating |
|
Processing and Customization |
OEM/ODM |
|
Shell Style |
Receptacle |
|
Mounting Style |
Receptacle |
|
Mating Style |
Triple start thread coupling |
|
Grommet and seal |
Silicon rubber |
|
Endurance |
500 cycles |
|
Trademark |
AVIA |
|
HS Code |
8536901100 |
Packaging & Weight
|
Package Size |
41.00cm * 31.00cm * 30.00cm |
|---|---|
|
Package Gross Weight |
100g |
Mechanical Specifications
Vibration
|
Sine |
60g, with temperature cycling and simulated accessory (36 hours) |
|---|---|
|
Random |
44.1 grms in high temperature 49.5 grms in ambient temperature |
|
Shock |
At 3 ms half sinusoid, peak value of acceleration: 300g |
Contact Retention
|
22D# |
45N |
|---|---|
|
20# |
67N |
|
16# |
111N |
|
12# |
111N |
|
10# |
111N |
|
8 # |
111N |
Electrical Performance
Voltage rating (V)
|
Package Size |
M |
N |
I |
II |
|---|---|---|---|---|
|
Sea level |
1300 |
1000 |
1800 |
2300 |
|
21000M |
800 |
600 |
1000 |
1000 |
Contact resistance and rated current
|
Contact Size |
Diameter (mm) |
Resistance (mΩ) |
Current (A) |
|---|---|---|---|
|
22D# |
Φ 0.76 |
≤ 12.0 |
5.0 |
|
20# |
Φ 1.00 |
≤ 5.0 |
7.5 |
|
16# |
Φ 1.60 |
≤ 2.5 |
13.0 |
|
12# |
Φ 2.40 |
≤ 1.5 |
23.0 |
|
10# |
Φ 3.15 |
≤ 1.0 |
40.0 |
Environmental Performance
Operating temperature
|
W class |
-65 oC ~ +175 oC |
|---|---|
|
K, F class |
-65 oC ~ +200 oC |
Salt spray
|
F class |
48h |
|---|---|
|
W class |
500h |
|
K class |
1000h |
Typical Applications
- Military Communication
- Aerospace Systems
- UAV & Defense Electronics
- Industrial Automation
Cross-Reference & Mating
Compatible Brands & Mating
|
Brands |
Equivalents |
Mates |
|---|---|---|
|
Amphenol |
J599/20FB35SB |
J599/26FB35PB |
|
Souriau |
- |
- |
|
ITT Cannon |
- |
- |
|
Aero/Conesys |
- |
- |
|
Deutsch |
- |
- |
Compatible Backshells & Caps
|
Type |
Backshells |
Dust Caps |
|---|---|---|
|
Straight, Grommet Nut |
M85049/14-19S |
D38999/33K19N |
|
45°Quick Clamp |
M85049/15-19S |
|
|
90°Quick Clamp |
M85049/16-19S |
|
|
Straight, Spin Coupling Environmental EMI/RFI Backshell |
M85049/18-19S |
|
|
Straight, Spin Coupling Non-Environmental EMI/RFI Backshell |
M85049/19-19S |
|
|
Straight Crimp Ring Adapter |
M85049/20-19S |
|
|
Straight, Spin Coupling Non-Environmental Backshell |
M85049/21-19S |
|
|
Straight Strain Relief Clamp |
M85049/38-19S |
|
|
90°Strain Relief Clamp |
M85049/39-19S |
|
|
45°, Spin Coupling Environmental EMI/RFI Backshell |
M85049/78-19S |
|
|
90°, Spin Coupling Environmental EMI/RFI Backshell |
M85049/79-19S |
|
|
Straight, Spin Coupling, cont. Shrink Boot Adapter |
M85049/69-19S |
|
|
Straight, Self-Lock Band Lock Adapter |
M85049/88-19S |
|
|
45°, Self-Lock Band Lock Adapter |
M85049/89-19S |
|
|
90°, Self-Lock Band Lock Adapter |
M85049/90-19S |
|
|
Straight Pre-Shield Adapter |
M85049/115-19S |
|
|
90°Pre-Shield Adapter |
M85049/117-19S |
|
|
Straight, Strain Relief Clamp |
M85049/124-19S |
|
|
90°Strain Relief Clamp |
M85049/126-19S |
Same Pin Count – Multiple Connector Options
Technical Assembly Kit Included
Protecting Your Connection Integrity
Improper tools often lead to damaged terminals and costly downtime. To ensure the performance of your MIL-DTL-38999 and MIL-DTL-26482 series assemblies, we include a Complimentary AVIA Precision Assembly Kit with every order.
By providing this kit at no additional cost, we ensure that every contact is handled with the correct tooling, maintaining the full electrical specifications and long-term reliability of your system.
The Complimentary AVIA Precision Assembly Kit
High-Reliability Terminal Contacts:
Engineered for optimal electrical and mechanical fit.
Dedicated Extraction Tooling:
Ensures safe, non-destructive handling of all contacts.
Compliance
Quality Management Certifications
Our quality management system, certified to ISO 9001, ensures consistent manufacturing processes and reliable product quality. AVIA Electronics follows internationally recognized quality standards — including ISO 9001 for quality management, ISO 14001 for environmental management, and ISO 45001 for occupational health and safety — to deliver dependable connector solutions.
-
- ISO9001 Certification
-
- ISO14001 Certification
-
- ISO45001 Certification
Product Compliance Certifications
Our connectors comply with international environmental and safety requirements, ensuring reliable and compliant solutions for global markets. AVIA Electronics products meet CE marking requirements, RoHS directive standards for restricted hazardous substances, and REACH regulation requirements for chemical safety, supporting seamless integration into global supply chains.
-
- CE Compliant
-
- RoHS Compliant
-
- REACH Compliant
Product Test Reports
Our products undergo rigorous testing to verify environmental protection, durability, and performance in demanding applications. Connectors are validated to IP68 waterproof and dust-proof ratings and undergo 500-hour salt spray testing to confirm corrosion resistance in harsh military, aerospace, and marine environments.
-
- IP68 Protected
-
- Salt Spray Test
Warranty
1-Year Quality Warranty
We provide a 1-year limited warranty on all products, covering defects in materials and workmanship. Please note that this warranty does not cover damages resulting from improper use, unauthorized modifications, or intentional misuse.
