BC Series

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waterproof connectors for industrial applications

Quick-Disconnect Waterproof Crimp Connectors

The BC Series of heavy duty connectors is perfect for mission-critical applications. Crimp contacts provide reliability, while bayonet coupling offers the convenience of quick-disconnect mating. Six receptacle styles and a full range of EMI/RFI backshells provide the ultimate in cylindrical connector solutions for military, aerospace, and industrial applications.

For vacuum chamber or pressurized connector applications, the BC Series offers three hermetic receptacles for various mounting styles. Hermetic connectors feature steel shells and glass fused inserts rated up to 75 psi.

For additional help in specifying your connector solution, please contact a Milnec sales professional, or your authorized distributor for technical and sales support.

BC Series Crimp Connectors

BC Series Plug

BC Series Receptacles

BC Series Accessories

BC Series Backshells

Series Catalog

Features & Benefits

  • Waterproof (IP67 Rated)
  • Quick-Disconnect Coupling
  • 32 Insert Arrangements
  • 12 to 24 AWG Compatible
  • Hermetic Receptacles Available
  • Thru-Bulkhead Receptacles Available
  • Removable Crimp Contacts
  • Field Serviceable Without Special Tools
  • 23 Amps Rated
  • Aircraft-Grade Aluminum Shells
  • 500 Hour Salt Spray Rating
  • Full Range of EMI/RFI & Environmental Backshells

Plug • BC06

Plug with optional grounding fingers

Description

This straight plug has the option of grounding fingers that provide superior shell-to-shell conductivity for shielded applications. Coupling is achieved with a quick 1/3 turn. Tactile, audible, and visual cues signal complete coupling.

Data Sheets

BC06 Plug

Wall Mount Receptacle • BC00

Receptacle with flange for easy mounting

Description

The wall mount receptacle features a four hole flange for easy mounting to any panel. Accessory threads are provided on the rear of the connector for backshells. A cover is recommended to protect contacts when the receptacle is not in use.

Data Sheets

BC00 Wall Mount Receptacle

Jam Nut Receptacle • BC07

Jam nut with integrated O-ring

Description

A jam nut receptacle is preferred for applications that are subject to environmental hazards because of its integrated O-ring and single hole mounting design, which reduces the number of environmentally susceptible openings in an enclosure.

Data Sheets

BC07 Jam Nut Receptacle

Cable Mount Receptacle • BC01

Extension Cord Receptacle

Description

A cable mount receptacle is perfect for extension cord applications. A round flange protects the connector from damage when dragged or dropped. A backshell is required for strain relief, and a protective cover is recommended to protect contacts from damage when the receptacle is not in use.

Data Sheets

BC01 Cable Mount Receptacle

Thru-Bulkhead Receptacle • BC22

Bulkhead feed-thru with dual receptacle ends

Description

This connector has receptacles on both sides of the shell, allowing cable plugs to connect from both sides. The long side of the shell features socket contacts, the short side pin contacts. A mounting bracket and gasket are recommended.

Data Sheets

BC22 Thru-Bulkhead Receptacle

Box Mount Receptacle (Hermetic) • BC12

Hermetic receptacle with low-profile design

Description

Hermetic receptacles are made from high-strength carbon steel and glass inserts to create a true airtight seal. The low-profile rear design does not permit the use of a backshell. A gasket and mounting bracket with sealing screws are recommended for a reliable hermetic seal.

Data Sheets

BC12 Hermetic Box Mount Receptacle

Jam Nut Receptacle (Hermetic) • BC13

Receptacle with a single mounting hole

Description

Jam nut receptacles are preferred for hermetic applications because of the single mounting hole design and the integrated O-ring that seals the mounting location. A protective cover is recommended when the connector is not in use. The low-profile rear design does not permit the use of a backshell.

Data Sheets

BC13 Hermetic Jam Nut Receptacle

Solder Mount Receptacle (Hermetic) • BC19

Hermetic receptacle with smallest footprint

Description

The hermetic solder mount receptacle is designed to have the smallest mounting footprint available. The reduced flange is useful when soldering in high densities to a panel or mounting to compact probes or sensors. The low-profile rear design does not permit the use of a backshell.

Data Sheets

BC19 Hermetic Solder Mount Receptacle

Straight Strain Relief Backshell • BCB2

Protect connectors from cable tension

Description

This basic backshell protects contacts by providing strain relief from the cable or wire bundle. The self-locking option is recommend for high-vibration applications. Upgrade to an environmental backshell for elemental protection.

Data Sheets

BCB2 Straight Strain Relief Backshell

90° Strain Relief Backshell • BCB4

Strain relief and cable management

Description

Angled strain relief is useful in environments where space is limited or where cable management is required. The self-locking option is recommend for high-vibration applications. Strain relief backshells should only be used for environmentally protected applications.

Data Sheets

BCB4 90° Strain Relief Backshell

Straight Environmental Backshell • BCE2

Environmental protection and strain relief

Description

Environmental backshells provide IP67 environmental protection from water, dirt, dust, and moisture by sealing against the cable jacket. A clamp on the back of the shell provides necessary strain relief. Upgrade to EMI/RFI environmental backshells for shielded applications.

Data Sheets

BCE2 Straight Environmental Backshell

45° Environmental Backshell • BCE3

Angled backshells provide accessibility

Description

Environmental backshells are perfect for most applications that require IP67 environmental protection. They seal against cable jackets to keep out dirt, dust, water, and moisture. Upgrade to EMI/RFI environmental backshells for shielded applications.

Data Sheets

BCE3 45° Environmental Backshell

90° Environmental Backshell • BCE4

Cable management and IP67 protection

Description

Cable sealing backshells provide environmental protection and have a strain relief cable clamp. The 90° angle provides excellent cable management in confined spaces. Upgrade to EMI/RFI environmental backshells for shielded applications.

Data Sheets

BCE4 90° Environmental Backshell

Straight EMI/RFI Environmental Backshell • BCR2

Ultimate environmental and EMI/RFI protection

Description

These backshells provide strain relief from cable tension, environmental sealing rated to IP67, and feature 360° shield termination hardware. They provide complete EMI/RFI and environmental protection for all mission-critical designs.

Data Sheets

BCR2 Straight EMI/RFI Environmental Backshell

45° EMI/RFI Environmental Backshell • BCR3

Full protection with cable management

Description

Internal hardware in this backshell provides 360° EMI/RFI shield termination. The 45° angle helps to direct cables along panels that are hard to reach or that contain multiple connectors. Cable sealing design provides complete IP67 protection.

Data Sheets

BCR3 45° EMI/RFI Environmental Backshell

90° EMI/RFI Environmental Backshell • BCR4

Ultimate protection and cable management

Description

This 90° backshell provides cable management in tight spaces. Glands seal against the cable jacket, providing IP67 environmental protection, while a cable clamp offers relief from cable strain, and internal hardware offers complete 360° shield termination for EMI/RFI protection.

Data Sheets

BCR4 90° EMI/RFI Environmental Backshell

Straight Shrink Boot • BCK2

Environmental protection, low-profile design

Description

A shrink boot provides complete IP67 environmental protection and strain relief. Must be used with a boot adapter.

Data Sheets

BCK2 Straight Shrink Boot

90° Shrink Boot • BCK4

Angled boot for simple cable management

Description

A 90° shrink boot offers simple cable management, strain relief, and environmental protection. For proper installation, it must be used with a boot adapter.

Data Sheets

BCK4 90° Shrink Boot

Boot Adapter • BCAB

Adapter for shrink boot installation

Description

This adapter is specifically designed to provide shrink boots with a groved platform for superior grip and environmental sealing. The design allows for unscrewing of the connector for field inspection without having to remove the shrink boot.

Data Sheets

BCAB Boot Adapter

EMI/RFI Banding Boot Adapter • BCD2

EMI/RFI shield termination with shrink boots

Description

The EMI/RFI banding boot adapter provides effective shield termination for applications using a shrink boot. Shielding is achieved with a band applied by a simple hand tool over a specially designed platform. The overlaying boot ensures strain relief and complete IP67 environmental protection.

Data Sheets

BCD2 EMI/RFI Banding Boot Adapter With Band

Protective Covers • BCCP/BCCR

Always cover unmated connectors

Description

Unmated connectors should always be paired with protective covers to environmentally seal and protect the contacts from impact or damage. Covers also keep dirt and debris from the coupling mechanism, ensuring reliable mating every time.

Data Sheets

BCCP Protective Covers

Stowage Receptacle • BCCD

Stow your cable while protecting your plug

Description

Prevent operator injury or connector damage by providing a safe place to stow and organize your unused cables. Protective covers are recommended to always keep stowage receptacles clean and dry, so they’re ready for use when needed.

Data Sheets

BCCD Stowage Receptacle

Mounting Gasket • BCGE

Environmentally seal your mounting point

Description

Mounting gaskets will seal the mounting space between the receptacles and the panel to maintain the environmental integrity of your enclosure. They may be used in either rear or front mount receptacle installations.

Data Sheets

BC Mounting gasket

Mounting Bracket & Screws • BCMB

High-reliability mounting hardware

Description

Mounting brackets with captive stainless steel locking nuts provide a safety measure to prevent loose fasteners from falling into susceptible areas, which may cause equipment failure. Optional sealing screws with O-rings will effectively seal the mounting holes on your enclosure from water ingress.

Data Sheets

BCMB Mounting Bracket & Screws

BC Series Contacts & Sealing Plugs

High-performance crimp contacts

Description

BC Series contacts are machined from copper alloy and are gold plated for the highest electrical continuity and corrosion resistance. The series offers contacts in sizes #12, #16, and #20, which are suitable for 12-24 AWG wire and are rated for up to 23 amps. In addition, thermocouples are available in sizes #16 and #20. Sealing plugs are required for open positions in any connector to maintain reliable environmental protection.

Data Sheets

Crimp Contacts

BC Series Crimp Tool • TK101

Crimp tool for all BC Series contacts

Description

The TK101A precision crimp tool enables termination of contacts from #12 to #20. The tool features an eight impression crimp, which ensures maximum tensile strength between wire and contact. The cycle controlled ratchet is consistent and accurate and does not permit half crimps, ensuring complete and precise crimping every time.

Data Sheets

TK101 Crimp Tool

BC Series Contact Insertion & Removal Tools

Reliable contact insertion and removal tools

Description

We ship plastic contact insertion and removal tools with every crimp connector. And while they offer a convenient solution for connector repair in the field, some applications demand more durable and precise tooling. Our stainless steel contact insertion and removal tools are the best option for production environments where higher tool reliability is required.

Data Sheets

Contact Insertion Tool