Home / Marine / Connectors & Cable AssembliesBIRNS Millennium Series

BIRNS Millennium 3K-1V Plugs

CP Type Cable Plug; Stainless & Ph. Bronze



BIRNS Millennium Catalog

Review the Catalog for Additional
Product Specifications




Plug & Receptacle must match to assure correct connector mating.

About 3K-1V Cable Plug Inserts


Shell-Insert Pin Configuration & Wiring Worksheet:

Cable Plug Materials

Cable Materials Options

BIRNS Millennium Cable Plugs are available in three material options: CP, CPTI, and CPTIA, each available with any Key Option (K0, K2, K3, or K4). Inserts, backshells, cables, and overmolds are all compatible and interchangeable.

Click to enlarge.

CP – Cable Plug Materials

Shell Material: 316 Stainless
Shell Hardware: 316 Stainless
Coupling Ring: Phosphor Bronze

CPTI – Cable Plug Materials

Shell Material: Titanium
Shell Hardware: Titanium
Coupling Ring: Delrin

CPTIA – Cable Plug Materials

Shell Material: Titanium
Shell Hardware: Titanium
Coupling Ring: Titanium

Cable Plug Dimensions

BIRNS Millennium Cable Plugs are dimensionally equivalent irrespective of different materials and/or Key Options.

Click to enlarge.

Cable Plug Dimensions (mm)

Cable Plug Dimensions (In.)

Cable Plug Mass


BIRNS Millennium Cable Plug masses are detailed in the following tables. These figures do not include the mass of any cable or wire, solder, insulating tubing, or potting or overmolding materials. Due to the different insert masses as a result of various contact quantities and sizes, these mass figures include a representative insert.

Cable Plug Mass (Grams)

Cable Plug Dimensions (Ounces)

Cable Plug Key Positions

Key Options

As the BIRNS Millennium series is specifically engineered for challenging signal and power applications, keys for the series precisely and accurately orient connector mating and maintain that accuracy over the system’s lifetime, while providing ease of use under harsh conditions. To that end, keys are machined as seamless integral elements of the connector shell*, of the same block of metal, with squared silhouettes for maximum strength, durability, and secure mating process.

For the ultimate in precision indexing, BIRNS Millennium connectors have dual keys and keyways. Users also have the option of a third key, providing purposeful incompatibility, when needed, to preclude inadvertent misconnection in the field. The optional third key can be specified in one of three positions, designated by part number suffixes K2, K3, or K4.

*Lesser-quality connectors use cheap press-fit keys.

(K0) Key Position – Blank

(K2) Key Position – 240°

(K3) Key Position – 210°

(K4) Key Position – 180°

Pro Tip: CPs with standard keys (K0) universally fit ALL receptacles (K0, K2, K3, K4). For suitable compatibility, always ensure that the CPs have the appropriate key options (K2, K3, K4).

Cable Plug Quality Management

Connector Serialization

In accordance with its comprehensive Quality Management System, BIRNS individually and permanently serializes all connector shells, allowing quality traceability back to the shell’s original manufacturing material certificates and dimensional
inspection reports. Serialization marking is performed by means of laser etching.

Secured By miniOrange