The World’s Largest Selection
of Mil-Spec Connectors

Search using part numbers only – not descriptions.

Alvatek Electronics LLC is AS9120B certified. View Certificate

The World’s Largest Selection
of Mil-Spec Connectors

Search using part numbers only – not descriptions.


   Widest Selection of QPL’d Mil-Spec Circular Connectors

   Quick-Delivery With Average Lead Time of 1 Week or Less

   Amex, MasterCard, Visa, U.S. Government P-Cards

Mil-Spec Connectors, Backshells, Accessories, Contacts & Tools From The World’s Leading Manufacturers



Find a full offering of the most popular series of mil-spec circular connectors the with widest selection of contact configurations, materials, and finishes. All connectors come with full traceability to government approved assembly centers.



We stock the most popular types of connector backshells to provide strain relief, environmental protection, and/or EMI-RFI protection to ensure complete interconnect integrity and performance under the harshest conditions.


Protective Covers

Give your connector the protection it deserves by adding a protective cover to ensure interconnect integrity when not in use. We can provide covers in a variety of materials and finishes with various attachment options.


Hermetic Receptacles

Hermetic receptacles are built to withstand pressure differentials in vacuum chambers, laboratory equipment, and commercial and military aircraft. We supply Hermetic receptacles for the most popular mil-spec connector series.


Shrink Boot Adapters

We stock a wide range of standard and EMI-RFI shrink boots and boot adapters. Thermoplastic shrink boots are available in various materials and adhesives for wide range of applications and temperature ranges.


Crimpers & Tools

Get tooling for a professional installation. We stock a wide selection of crimpers and contact insertion and removal tools for all the connectors we sell — from basic hand crimpers to pneumatic crimpers for production environments.



We supply a wide range of crimp contacts for all mil-spec circular connectors ranging from size #22 to 4/0 contacts for high current applications. In addition, we offer a full range of thermocouple, coax, and fiber optic termini.


Sealing Gaskets

Mounting gaskets for panel mounted receptacles provide the highest degree of sealing. We stock a full range of sizes and material options, including conductive gaskets for EMI-RFI aerospace and defense applications.


Mounting Accessories

Use mounting brackets with lock nuts to prevent connectors from loosening under vibration. Brackets and matching sealing screws and O-rings provide complete environmental protection for all panel mounted connectors.