25.4mm Clear Viewport Plug (28.6mm Head) | Polycarbonate

Product code: BLA420
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25.4mm Clear Viewport Plug (28.6mm Head) | Polycarbonate
25.4mm Clear Viewport Plug (28.6mm Head) | Polycarbonate
25.4mm Clear Viewport Plug (28.6mm Head) | Polycarbonate
25.4mm Clear Viewport Plug (28.6mm Head) | Polycarbonate
25.4mm Clear Viewport Plug (28.6mm Head) | Polycarbonate
25.4mm Clear Viewport Plug (28.6mm Head) | Polycarbonate
Quantity
Unit Price
(ex. VAT)
Unit Price
(inc. VAT)
1 - 249 £0.78 £0.93
250 - 499 £0.62 £0.74
500 - 999 £0.50 £0.60
1000 - 2499 £0.43 £0.52
2500 + £0.38 £0.45
£0.93 / each
Quantity:


Product Specification
Mounting Hole Diameter 25.4mm
Panel Thickness 3.2mm
Material Polycarbonate
Head Diameter 28.6mm
Overall Height 11.5mm
Colour Clear

Next Day or Standard Delivery available via DHL or Royal Mail.
Order by 4pm (UK) for same day dispatch, Monday to Thursday or 2pm Friday.

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Call our sales team on

01233 713581


Frequently Bought Together

Total Price: £0.00

25.4mm Clear Viewport Window Plug | 3.2mm Panel | Polycarbonate

A practical choice for machine covers and control boxes that need passive inspection, this electrical panel viewport plug is made from clear Polycarbonate to suit a 25.4mm mounting hole and 3.2mm panel thickness. It provides a clear viewing point for enclosed components while giving the panel opening a clean, protected finish.

Clear polycarbonate supports simple visual monitoring in production areas, reducing downtime where only a quick internal check is needed. The 28.6mm head diameter and 11.5mm overall height make it suitable for accurately finished panel work where visibility, fit and practical protection all matter.

What Are Viewport Window Plugs?

Viewport window plugs are transparent panel inserts that close an aperture while still allowing internal visibility. They are used where engineers need to view indicators, fuses or internal features without opening the enclosure. Manufactured from clear polycarbonate, these inspection plugs are commonly used in equipment housings, control panels and machinery enclosures where passive visual monitoring is required.

Common Applications

  • Large equipment housings with clearer internal viewing areas
  • Control cabinets with multiple indicators behind one aperture
  • Panel assemblies needing a robust clear cover
  • Maintenance-friendly enclosures across production environments

25.4mm Clear Viewport Window Plug Dimensions

  • Mounting Hole Diameter: 25.4mm
  • Panel Thickness: 3.2mm
  • Head Diameter: 28.6mm
  • Overall Height: 11.5mm
  • Colour: Clear
  • Material: Polycarbonate

Inspection and Panel Protection

This viewport window plug helps reduce unnecessary panel opening by giving technicians a visible inspection point for internal equipment. The snap-fit design supports quick installation in prepared holes, making it suitable for production builds, control cabinet assembly and maintenance replacements.

View our full Viewport Window Plugs range.

Product Support and Trade Orders

For project quantities, panel compatibility advice or help comparing standard and short viewport plugs, call the Vital Parts team on 01233 713581. We can help with practical product guidance for UK manufacturing and maintenance teams.

Please call for any enquiries!
Mon - Thurs 8.30 am - 5.30 pm
Fri 8.30 am - 3.30 pm
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