MIL-DTL-38999 Connectors

Timbercon offers a full range of high-reliability cylindrical connectors specifically designed for use with fiber optics. Designed for harsh environments with lightness and durability in mind, MIL-DTL-38999 cables are available with either composite, aluminum, or stainless steel connectors and components. Updated tolerances in both the connectors and termini provide for consistent precision alignment of optical fibers.


  • Available in 2, 4, 5, 8, 11, 16, 21, 29, 37 channel configurations
  • Low insertion loss
  • Available with single mode and multimode termini
  • Hybrid versions available
  • Tight tolerances
  • Ceramic connector ferrules
  • Ruggedized packaging
  • Precision optical alignment
  • Customizable

MIL-DTL-38999 military fiber optic cables may also be referred to as: D38999, 38999, or tactical fiber.

Triple-start and anti-vibration couplings insure fast and secure mating every time. This connector uses the MIL-T-29504/4 and /5 termini which Timbercon terminates in our factory using custom, automatic polishing fixtures.

Timbercon utilizes high-reliability fiber optic connectors, such as the MIL-DTL-38999, to produce precision alignment of optical fibers. Connectors with polarization keys and keyways are manufactured to exacting tolerances to reduce radial misalignment and insertion loss. Timbercon military specific connectors also incorporate a bottoming surface to ensure reliable shell-to-shell connection. This attribute ensures that the linear dimensional relationship of the contact termini are the same. Contact Timbercon to learn more about MIL-DTL-38999 fiber optics.


  • High quality & reliable – US assembled using domestic and foreign components
  • Certified for harsh environments
  • Consistent and reliable performance from precision engineering


  • Military
  • Shipboard
  • Aerospace
  • Harsh Environment
  • Telecommunications
  • Armored Applications
Sign up for the Timbercon newsletter:

    By submitting this form, you are consenting to receive marketing emails from: Timbercon, 20245 SW 95th Avenue Tualatin, OR 97062 United States, You can revoke your consent to receive emails at any time by using the SafeUnsubscribe® link, found at the bottom of every email.

    This site uses cookies to enhance the user experience, and by browsing this site, you are accepting the receipt of cookies on your browser from this site. To manage use of cookies, please refer to your browser settings. Click here to learn more.