MIL-DTL-83526 TFOCA-II®* & GFOCA Connectors

Timbercon MIL-DTL-83526 products are an ideal solution for multi-fiber connectivity in environmentally harsh conditions, while providing a superior level of performance and durability.

All Timbercon MIL-DTL-83526 products are designed for maximum performance with minimal field maintenance. However, should field repair, maintenance, and/or cleaning be required, these products can be fully field-repaired reusing all the existing components with the exception of the termini. For easy service or maintenance, each connector has a removable end cap allowing direct access to the alignment sleeve and termini.

All Timbercon MIL-DTL-83526 products utilize precision designed and manufactured connectors and components. Connector options include TFOCA-II ®*, DFOCA, and GFOCA, with a myriad of fiber type and count options.

(*TFOCA-II ® is a registered trademark of Amphenol Corporation.)


  • Incorporated, removable front key plate
  • 4 optional keying positions
  • Available in multiple types of plated aluminum, or stainless steel
  • Available with single mode and multimode termini
  • Factory polished single mode to UPC standards
  • Improved cable strain relief
  • Meets MIL-STD-1344 vibration specifications (Method 2500.1) and EIA/TIA-455-14 (Condition A) shock requirements

Timbercon utilizes high-reliability fiber optic connectors, such as the MIL-DTL-83526, 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-83526 fiber optics.

MIL-DTL-83526 connectors may also referred to as: 83526, TFOCA-II®, DFOCA, or GFOCA.


  • Easy termini cleaning with removable front key plate
  • Keying position options enable segregated mating through mechanical interface
  • Plated aluminum or stainless steel options for high corrosion applications
  • Single Mode UPC polish ensures high performance
  • Strain relief designed to meet 400 lb. pull strength specification


  • U.S. Army, Navy, and Marine Corps military tactical deployments or strategic installations
  • Oil, Gas and Geosciences industries
  • Mining
  • Industrial
  • Broadcast
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