Rectangular Connectors – W Series

W-Series connectors are MIL-55302 qualified and are a trusted component in countless Military & Defence applications. When the success of your design could be the difference between life and death, you can count on W-Series connectors to perform every time. With a rugged & reliable contact design, W-Series connectors can be trusted to perform every time, especially in extreme environments.

Product Features:

  • 0.100" (2.540mm) contact spacing
  • 1, 2, 3, 4 & miscellaneous row options
  • 1-208 contacts
  • Field proven, flight-heritage technology used in Space Shuttles, Mars Rovers and the GOES-16 & Milstar Satellites
  • 3 reliable points-of-contact
  • Straight, right-angle, card-edge (WB series), I/O & connector saver
  • MIL-DTL-55302 qualification

Connector Options

W Series products are high-density connectors approved to MIL-55302 standard commonly used in board-to-board or wire-to-board applications. The cantilevered spring-member receptacle design creates 3-points-of-contact with mating pins, forming consistent contact at all times.

Multi Application Connectors

W-Series connectors are a proven flight-heritage technology. They are key components within the Space Shuttle and Mars Rover programs.


The W-Series product is M55302-compliant.

Military Part Number Cross-Reference Catalog Pages

Military Specifications Catalog Page(s)
M55302/55, M55302/55L CTWA020
M55302/56 CTWA020
M55302/57 CTWA020
M55302/58, M55302/58L CTWA021
M55302/59 CTWA021
M55302/60, M55302/60L CTWA022
M55302/61 CTWA022
M55302/62 CTWA022
M55302/63 CTWA022, CTWA023
M55302/64, M55302/64L CTWA023
M55302/65, M55302/65L CTWA024
M55302/66, M55302/66L CTWA024
M55302/117, M55302/118, M55302/119 CTWB013
M55302/138 CTWA024
M55302/139 CTWA024

Contact Components

Military Part No. AirBorn Part No. Description Catalog Page
M55302/65-01 WTK2222S Crimp Contact CTWA009, CTWA010
M55302/65-02 WTK2222SA Crimp Contact - Low Force CTWA009, CTWA010

W Series Catalogue