Amphenol Fiber Systems International MIL-ST Fiber Optic Connectors

Amphenol Fiber Systems International MIL-ST Fiber Optic Connectors are specially designed for deployable and fixed communication systems. These connectors meet the stringent requirements of MIL-C-83522 to provide the best possible optical performance in harsh environments. The MIL-ST series features a higher spring force than commercial ST connectors, enabling them to meet the shock and vibration requirements of MIL-C-83522. Stainless steel construction delivers mechanical strength and corrosion resistance. The boot is attached either by a compression ring or by a threaded adapter. 

These US Navy-approved commercial-off-the-shelf (COTS) ST connectors offer the same robustness with a spring force more consistent with commercial ST connectors. The COTS products are designed for use in shock-isolated environments or to interface with commercial electronics and non-mil-spec ST adapters. They are also appropriate for applications seeking corrosion resistance and mechanical strength.

Typical applications for Amphenol Fiber Systems International MIL-ST Fiber Optic Connectors include US Navy shipboards, surface and submarine, communications systems, mobile tactical shelters, mobile emergency telecommunications stations, and much more.


  • DFAR 252.225-7014 (domestic specialty metals) compliant
  • RoHS compliant
  • Superior optical performance in extreme environmental conditions
  • Super and ultra PC polish capabilities
  • Navy-approved COTS, for moderate shock and vibration environments
  • Mil-qualified series, high spring force for shock and vibration resistance critical in military applications
  • Robust construction
  • High-grade stainless steel body (17-4 SS)
  • Zirconia ceramic ferrules and sleeves
  • Fungus-resistant, self-extinguishing boot


  • US Navy shipboards
  • Surface and submarine
  • Mission-critical combat
  • Communications systems
  • Mobile tactical shelters
  • Electronic battlefield networks
  • Mobile emergency telecommunications stations
  • Deployable outdoor, harsh environments
Published: 2021-02-09 | Updated: 2022-03-11