Deutsch Autosport AS020 — 41-Way Flange Socket (Female) — Green Key (D)
The Deutsch Autosport 41-Way Flange Socket (Female) Connector — Green Key (D) — SKU: AS020-41SD is a genuine MIL-spec-grade Deutsch Autosport AS series panel-mounted connector built for 41-circuit maximum-density primary loom separation points in the AS020 shell in professional race cars, hillclimb, rally, and high-performance builds across Norway, Sweden, and Denmark. Configured as a flange-mount (panel/bulkhead) separable join, this connector is fixed to a chassis panel, firewall, or bulkhead surface via its integral mounting flange — delivering a clean, reliable, mechanically keyed separable interface at the harness separation point.
AS020 Shell — Series Architecture and Circuit Density
The AS020 is an extra-large circular flange-mount shell carrying circuit counts from 16 to 79 ways — designed for high-density primary loom bulkhead interfaces and full vehicle circuit consolidation points on the most complex professional race car builds. The AS020 provides MIL-spec aluminium alloy construction, gold-plated contacts, and positive push-pull locking in the largest standard flange-mount shell available in the lower half of the AS series range. The 41-circuit configuration in the AS020 shell is suited to 41-circuit maximum-density primary loom separation points in the AS020 shell. Typical applications at this circuit count include full vehicle primary loom engine-to-chassis separation joins, maximum circuit consolidation at a single AS020 separation point, consolidated ECU and PDM main harness combined splits, and high-density vehicle-wide circuit bus joins. The 41-way flange is the highest standard circuit count available in the AS020 shell — delivering the greatest circuit consolidation per connector pair in this shell size.
Socket (Female) — 41-Circuit Contact Array
This listing supplies the socket half of the 41-way AS flange connector pair — gold-plated socket contacts 41 in total — receiving the incoming pin contacts from the mating half and completing each circuit across the flange-mount (panel/bulkhead) separation point. To form a complete functional connector pair, the matching Pin (Male) half of the same circuit count, shell size, and key colour must be ordered separately; both halves are required to create a mated, functional separable join. AS series contacts are ordered independently of the connector shells — select the correct contact part number for your wire gauge, current rating, and preferred termination method.
Green Key (D) — Keying Position and Mis-Mate Protection
Green D is the fourth and final standard key colour in the Deutsch Autosport AS keying system — reserved for the fourth 41-circuit AS flange bundle when maximum circuit density at a single separation point demands four parallel pairs. With Yellow A, Blue B, and Orange C already assigned to the first three bundles, Green D completes a four-key, fully protected connector arrangement. No pair can be mated to any other, regardless of how quickly the reconnection must be made. This four-key arrangement represents the maximum mis-mate protection achievable at a single separation point in the AS system. The full four-key scheme — Yellow A, Blue B, Orange C, Green D — is used by professional motorsport loom builders across Norway, Sweden, and Denmark only on the most complex full race car builds where four parallel 41-circuit AS flange bundles are required at the same separation point.
Flange Configuration — Panel and Bulkhead Mounting
The AS flange connector mounts through a panel cutout using its integral aluminium mounting flange — fixing one half of the connector pair permanently to the chassis, firewall, or bulkhead surface. The mating free half (the cable-mounted opposite half) plugs directly into the panel-mounted half, creating a secure separable interface at the bulkhead itself. This configuration is used wherever the harness must separate cleanly at a fixed chassis point — engine bay to cabin firewall, removable subframe to chassis, fuel cell bay to main loom, or any other fixed panel location where one side of the harness needs a permanent, precision-located connection point. Flange connectors are the professional standard for primary chassis separation points in full race car loom builds. Flange-mount AS connectors are the standard choice for primary chassis and bulkhead separation points on race cars and high-performance vehicles built and maintained by loom specialists and motorsport workshops across Norway, Sweden, and Denmark.
Technical Specifications — AS020-41SD
- Series: Deutsch Autosport AS
- Shell size: AS020
- Circuit count: 41-way
- Configuration: Flange (flange-mount (panel/bulkhead))
- Contact type: Socket (Female)
- Key colour: Green (Key D)
- Shell material: Aluminium alloy, MIL-spec machined
- Contact plating: Gold over nickel
- Operating temperature: −65°C to +175°C
- Locking mechanism: Push-pull positive lock collar
- Contacts: Ordered separately — not included
- Mating half required: Pin (Male), same circuit count, shell size, and key colour











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