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Fiber Optic Slack Storage Box, Exterior without holes

SKU: FB23-3971SBNH
Various lead times may apply to this product. Please contact us for more details.
Made in USA


Slack Storage Wall Mount Enclosure, Exterior with No Holes

This OSP slack storage box is used for exterior slack storage applications using 3mm single fiber cable. There are two stackable storage spools that allow storage of multiple single fiber cable drops. Both of these spools are removable. In an instance where only one spool is sufficient, the spool can either be secured at a lower level or can be mounted at an elevation onto the risers off the back of the inside of the box as a spool on the upper level. This allows additional storage under the spool. The box is equipped with a hex bolt (with a retainer) that can be secured using a standard 216C type wrench. In addition to the above, the box is also equipped with a provision for a hasp lock. A built-in hinge allows captive and non-captive flexibility.

Cleaning your fiber connector end faces and components regularly is crucial for avoiding a total network failure. Ensure your optical fiber system is working properly and prevent major network issues with fiber cleaning kits, pens, fluids, and wipes.



  • Dual removable spools for easy fiber storage.
  • Hasp lock provision for added security.
  • Standard hex bolt for secure seal.
  • Built in hinge for captive and non-captive flexibility.


Fill Chart

Bend Radius: 1.211"
Cable Type: 3mm Fiber Optic Cable
EIA/TIA 40%: 4.4 1.34 M
Maximum Fill: 11' 3.52 MRT

Outer Dimensions

Depth: 2.2"
Height: 4.8"
Width: 4.8"
Weight: 10 lbs.

    Physical Properties

    Color: Ivory
    Material: Impact modified flame retardant Polybutylene Terephthalate