Attend a 4 Day - Fiber Optics 1-2-3 Light Brigade Training Course held at Fiber Optic Center in New Bedford, MA. Upcoming class dates December 16-19, 2025. View More Details.
Adapter Dust Caps, Sleeves
2.5mm P-Bronze Split Alignment Sleeve (10.1mm)2.5mm Phosphor Bronze Split Alignment Sleeve (10.1mm)
Part: PB-SLE-10.1
CMG SC Molded Adapter Dust Cap and Metal ChainCMG SC Molded Adapter Dust Cap and Metal Chain, Molded Evoprene
Part: EFA02 14 ASSY
CMG Disposable ST Molded Adaptor Dust Cap (Black)CMG Disposable ST Molded Adaptor Dust Cap (Black), Polypropylene
Part: EFA02 19 001
ST Molded Adaptor Dust Cap (Black)ST Molded Adaptor Dust Cap (Black), Polypropylene
Part: OPT02 20 001
CMG ST Metal Dust Cap and Chain, Stainless SteelCMG ST Adaptor Metal Dust Cap and Chain, Stainless Steel
Part: EFA02 10 ASSY
CMG FC/D4 Molded Adapter Dust Cap (Red)CMG FC/D4 Molded Adapter Dust Cap (Red), Molded Polypropylene, Reusable
Part: EFA02 03 005
Amphenol FC Metal Dust Cap w/ Chain for FC adapterAmphenol FC Metal Dust Cap w/ Chain for FC adapter
Part: 944-120-1014
Amphenol SMA Adapter Dust Cap & ChainAmphenol SMA Adapter or Receptacle Metal Dust Cap & Chain.
Part: 905-163
LC Molded Adapter Dust Cap - Round (White)LC Molded Adapter Dust Cap - Round (White)
Part: OPT02 51 002
LC Molded Adapter Dust Cap - Square (White)LC Molded Adapter Dust Cap - Square (White)
Part: OPT02 51 001
CMG SC Molded Adapter Dust Cap (Blue)CMG SC Molded Adapter Dust Cap (Blue), Molded Polypropylene, Reusable
Part: EFA02 14 004
CMG SC Molded Adapter Dust Cap (Black)CMG SC Molded Adapter Dust Cap (Black), Molded Polypropylene, Reusable
Part: EFA02 14 001
CMG FC Metal Adapter Dust Cap and Chain, Stainless SteelCMG FC Metal Adapter Dust Cap and Chain, Stainless Steel
Part: EFA02 09 ASSY
CMG FC/D4 Molded Adapter Dust Cap (Green)CMG FC/D4 Molded Adapter Dust Cap (Green), Molded Polypropylene, Reusable
Part: EFA02 03 003
CMG FC/D4 Molded Adapter Dust Cap (Natural)CMG FC/D4 Molded Adapter Dust Cap (Natural), Molded Polypropylene, Reusable
Part: EFA02 03 001
CMG FC/D4 Molded Adapter Dust Cap (White)CMG FC/D4 Molded Adapter Dust Cap (White), Molded Polypropylene, Reusable
Part: EFA02 03 004
Adapter Dust Caps, Sleeves
Sleeves, often referred to as alignment sleeves, are cylindrical components within fiber optic adapters that precisely align the ferrules of two connectors. Typically made from ceramic, metal, or plastic, they ensure the optical fibers are perfectly centered to minimize insertion loss. The quality and material of the sleeve play a significant role in the adapter’s performance and durability.









