Attachment 1: TRD
Updated
A PDF document (142 KB) attached to Harsh Environment Circular Connector Accessories, from the Department of the Air Force. Due Nov 3, 2026, 12:00 PM (UTC-6).
File name: Att 1 TRD 19 Oct 26.pdf
The full file is for paid members, or buy this bid alone.
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Technical Requirements Document (TRD)
Heavy-Duty Circular Electrical Connector
Date: 19 October 2026
1. Scope
This Technical Requirements Document (TRD) defines the functional, electrical, mechanical, environmental, and quality requirements for the heavy-duty circular electrical connector part number RT9730-19-12S-546 (Qty 270 Ea).
The connector is a commercial-grade equivalent (or higher) to military-specification power connectors, primarily aligned with the performance intent of MIL-DTL-22992 Class L (heavyduty, high-current circular connectors) and similar Class L interconnect families. It is intended for use in military ground support equipment, power distribution systems, industrial machinery, and other harsh-environment applications requiring secure coupling, environmental sealing, and high reliability.
This TRD is intended for procurement, qualification, incoming inspection, and system integration purposes. It does not replace the manufacturer’s official datasheet or any applicable military specification.
2. Applicable Documents
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MIL-DTL-22992 – Connectors, Electrical, Circular, Heavy Duty, Quick Disconnect, Environment Resisting (Class L intent)
MIL-STD-810 – Environmental Engineering Considerations and Laboratory Tests MIL-STD-202 – Test Methods for Electronic and Electrical Component Parts Manufacturer documentation for Robert Technologies RT9730 series (or Western Protective Solutions equivalent)
Any applicable system-level interface control document (ICD) or cable harness specification that references this part
3. Technical Requirements
3.1 Electrical Requirements
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Contact Arrangement: 12 contacts (socket) in shell size 19 Current Rating: Suitable for high-power Class L applications (typical individual contact ratings in this family range from tens to hundreds of amperes depending on wire size and contact design – exact rating to be confirmed on manufacturer datasheet) Voltage Rating: Compatible with power distribution voltages typical of MIL-DTL22992 Class L connectors Contact Resistance: Low milliohm range consistent with power connectors Insulation Resistance & Dielectric Withstanding Voltage: Per applicable MIL-DTL22992 or manufacturer equivalent requirements
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Shielding / Grounding: Shell provides continuous grounding path when mated (standard for this class of connector)
3.2 Mechanical Requirements
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Shell Size: 19
Coupling Style: Quick-disconnect, heavy-duty (typical of Class L / MIL-DTL-22992
The beginning of the document. Download the full file to read on.