MS3470A22-55P RECEP CONNECTOR BLACK

MS3470A22-55P — 55-Way Black Anodised Aluminium MS3470 Threaded Receptacle (Pin (Male) Contacts)

The MS3470A22-55P is a 55-way black anodised aluminium MS3470 circular mil-spec receptacle connector with pin (male) contacts, built to MIL-DTL-26482 Series II. Designed for motorsport wiring harness bulkhead and panel junction applications, this connector provides a robust, vibration-resistant, and environmentally sealed circular connection point in a shell size 22 body. The 55-way insert is among the highest-density configurations in this shell size, suited to the most demanding motorsport harness junction points where maximum circuit count per connector is the primary design driver.

MS3470 Series — Threaded Coupling

The threaded coupling mechanism locks the connector securely under vibration and shock, resisting accidental unmating during sustained high-G cornering, rough road rally stages, and on-track kerb impacts. This makes the MS3470 the preferred choice for semi-permanent harness junction points such as engine block bulkheads, transmission tunnel feedthroughs, and chassis-to-body harness interfaces where fast removal is not a primary requirement. The MS3470 series shares standardised contact accessories and tooling with the MS3474 (bayonet (quarter-turn) coupling), allowing a consistent tool inventory across connector families on the same vehicle.

Shell Size 22 — Insert Arrangement -55P

Shell size 22 is suited to maximum-density large-harness bulkhead connectors, primary ECU connectors, and full vehicle harness junction points. The -55P insert arrangement defines the exact contact pattern and gender within the shell; always cross-reference against your harness schematic before crimping to confirm pin-out. The 55-way insert is among the highest-density configurations in this shell size, suited to the most demanding motorsport harness junction points where maximum circuit count per connector is the primary design driver.

Shell Finish — Black Anodised Aluminium

The black hard-anodised finish offers the same corrosion resistance and mechanical durability as the traditional olive-drab treatment while providing a visually distinctive appearance popular in professional motorsport builds. Both finishes accept identical contact accessories and tooling.

Contact Type — Pin (Male) Contacts

Pin (male) contacts project from the insert face and are typically assigned to the device or ECU side of the connector pair. Appropriate dust caps should protect exposed pins during unmated storage. Contacts for this insert are size 16 or size 20 depending on the arrangement — consult the connector datasheet to confirm the correct contact part number and crimp die for your wire gauge.

Compatible Accessories

Compatible with MS3420, MS3437 (Series I) or MS3440 (Series II) backshells and equivalent strain relief accessories. Dust caps are available for both the mated connector face and the unmated backshell entry.

Available from Arctic Performance Parts

Arctic Performance Parts stocks a comprehensive range of MS3470 and MS3474 circular connectors in olive-drab and black finishes across all major shell sizes and insert arrangements, supporting professional harness builders and motorsport workshops across Scandinavia. Quantities beyond current stock are available within 1–2 weeks from our specialist suppliers.