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Dimensions shown in inches (mm)
Specications and dimensions subject to change
Cannon 38999-Style Series I, II, III Connectors
ITT Cannon connectors set the industry standard for performance and reliability in the most demanding
conditions and harshest environments. Our 38999-Style Series I, II, III Connectors are designed to
withstand the extreme shock, exposure and vibration that are commonplace in Defense and
Commercial Aerospace applications.
We offer lightweight, space-saving solutions to our military customers, coupled with high bandwidth and
high power for severe service application needs. More than a century of experience, coupled with
unparalleled engineering and testing resources, has established ITT Cannon as one of the premier
providers of interconnect solutions worldwide.
With a proven track record for engineering and manufacturing excellence, ITT Cannon continues to
deliver a broad range of innovative products and solutions that enable our customers to meet their most
demanding design requirements, where impeccable reliability and safety are essential.
Example Application Areas
• Defense
– Military aircraft
– Military communication systems
– Hand held and vehicle platforms
– Military ground support systems
– Military computer systems
– Harsh environment platforms
– Blind mate applications
– High density, low signal platforms
– Hand held and vehicle platforms
– Unmanned systems
• Aerospace
– Aircraft engines
– General electric testing equipment
– Commercial business aviation
– Aerospace launch vehicles
www.ittcannon.com
Dimensions shown in inches (mm)
Specications and dimensions subject to change
38999-Style Connectors: Precision Engineered, Lightweight & Rugged
ITT Cannon’s 38999-Style Series I, II, III Connectors are designed to tackle the most extreme conditions
with exceptional versatility in the harshest environments. Small, lightweight and highly reliable, our D38999-
Style connectors deliver consistency and performance when it matters most.
D38999-Style Series I (KJL)
ITT Cannon KJL 38999-Style Series I connectors offer high-density contact
arrangements in a light-weight miniature circular connector. ITT Cannon KJL
series connectors are an industry standard for military and aerospace
applications. The environmentally sealed KJL series features quick-mating,
three-point bayonet coupling and operates across a wide temperature range.
D38999-Style Series II (KJ)
ITT Cannon KJ 38999-Style Series II are a weight-reduced and low profile circular
connector ideally suited for avionic applications where space and weight are prime
considerations. It offers high-density contact arrangements in a light-weight miniature
circular connector. ITT Cannon KJ series connectors feature a quick-mating, three-
point bayonet coupling, are environmentally-sealed and operate across a wide
temperature range. ITT Cannon KJ series mil spec connectors were originally designed
for military vehicles and are now industry standard aerospace and military connectors.
38999-Style Series III (KJB)
The de-facto standard circular connector for use in harsh military and aerospace
environments, ITT Cannon's KJB 38999-Style Series III Connectors offer high-
density contact arrangements in a light-weight miniature circular connector. ITT
Cannon's KJB series connectors have quick-mating, triple-lead threaded, self-locking
coupling, are environmentally-sealed and operate across a wide temperature range.
These connectors were originally designed for military vehicles and are now use for
multiple applications throughout the Aerospace & Defense Industry.
38999-Style Series III Composite (KJB)
A lightweight standard circular connector for use in military and aerospace environments
with significant weight savings over aluminium-bodied D38999-Style. High density
layouts with up to 128 data connections and power contacts rated up to 23A.
Features a triple-start coupling with anti-decoupling ratchet for high vibration
applications, Cadmium and Electroless Nickel platings, 100 percent scoop-proof
contacts and rated to 1500 mating cycles.