Call Us Today 01706 242050
Ilme ASC21B Nickel plated brass blanking plug PG21

Ilme ASC21B Nickel plated brass blanking plug PG21

ILME ASC21B PG21 nickel-plated brass sealing plug with anti-ageing O-ring for sealing unused threaded cable entries. IP68 protection.

SKU: ASC21BMPN: ASC21B
Price
List Price £4.62 ex VAT
Your Price (ex VAT)
£4.62
Manufacturer Lead Time Please contact us for a delivery time before you order
Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

Sign up for a trade account Quick & easy setup
SUBTOTAL (EX VAT) £4.62
Trade pricing is personalised to your account

Manufacturer Lead Time

£4.62

Why Choose the ILME ASC21B Sealing Plug?

The ILME ASC21B is a premium PG21 nickel-plated brass sealing plug designed to blank unused cable entry holes in industrial connectors, electrical enclosures and junction boxes. Manufactured from corrosion-resistant nickel-plated brass and fitted with an anti-ageing O-ring gasket, it maintains enclosure integrity while protecting against dust, moisture and contaminants.

Designed for demanding industrial environments, the ASC21B provides an IP68 ingress protection rating when correctly installed, making it ideal for machinery, automation systems, control panels and heavy-duty connector enclosures. The robust brass construction ensures excellent durability and long service life even in harsh operating conditions.

Whether sealing spare cable entries during installation or maintaining protection ratings during future system modifications, the ILME ASC21B delivers a professional, reliable and long-lasting solution for PG21 threaded openings.

Key Advantages

  • Purpose-designed PG21 sealing plug for unused cable entries.
  • Nickel-plated brass construction provides excellent corrosion resistance.
  • IP68 protection against dust and water ingress.
  • Supplied with an anti-ageing rubber O-ring gasket.
  • Maintains enclosure protection where cable glands are not installed.
  • Ideal for industrial connectors, control panels and electrical enclosures.

Key Features

  • ILME AS Series sealing plug.
  • PG21 thread.
  • Nickel-plated brass body.
  • Anti-ageing rubber O-ring seal.
  • IP68 ingress protection.
  • Operating temperature: -25°C to +120°C.
  • Simple installation using standard tools.
  • Suitable for industrial enclosure applications.

Maintain Enclosure Protection

Unused cable entry holes can compromise the protection rating of industrial enclosures by allowing moisture, dust and contaminants to enter. Installing a purpose-designed sealing plug restores the enclosure's environmental protection while maintaining a neat, professional appearance.

The ILME ASC21B combines precision-machined nickel-plated brass with a durable anti-ageing O-ring to provide dependable long-term sealing for unused PG21 threaded openings in industrial equipment and automation systems.

Typical Applications

  • Industrial connector housings.
  • Electrical control panels.
  • Industrial automation systems.
  • Machine building.
  • Junction boxes.
  • OEM electrical equipment.

Technical Specifications

Tick the specs you need, then view products that match.

Entry Thread Length (mm) 7 mm
Material Brass (nickel-plated)
Thread Size PG21
Device Type Blanking / entry plug
IP Rating IP68
Series AS Series
Product type Sealing plug / blanking plug
Thread size PG21
Thread type PG
Body material Nickel-plated brass
Seal Anti-ageing rubber O-ring
Protection rating IP68
Operating temperature -25°C to +120°C
Thread length 7 mm
Overall diameter 30 mm
Application Sealing unused threaded cable entries
IP Rating IP68

Frequently Asked Questions

What is the ILME ASC21B used for?

The ASC21B seals unused PG21 threaded cable entry holes in industrial enclosures, connector housings and electrical panels.

What thread size does the ASC21B use?

The sealing plug features a standard PG21 thread.

What protection rating does the ASC21B provide?

When correctly installed, the ASC21B provides an IP68 protection rating against dust and water ingress.

What material is the sealing plug made from?

The ASC21B is manufactured from nickel-plated brass and incorporates an anti-ageing rubber O-ring for reliable sealing.

Where is the ASC21B commonly used?

It is commonly installed in industrial connectors, machinery, control panels and electrical enclosures to blank unused PG21 threaded openings.

Trusted for Industrial Enclosure Protection

ILME enclosure accessories are trusted by panel builders, OEMs and automation engineers worldwide for delivering reliable sealing, robust construction and dependable long-term industrial performance.

● Service Agreements

Credit Accounts

Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.

 Priority sourcing and supply support

 Flexible payment terms for qualifying organisations

 Support for engineering, maintenance, and operations

500 +

Stock lines ready to ship

1,000 +

Same day dispatches

3500 +

Customers supported

28 

Trusted Manfacturers

● frequently asked questions

Common questions about our products and support

 

At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.

What product ranges do you supply

We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products. 

Can you help specify the correct part?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Do you have stock for urgent orders?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What are your delivery times and costs?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What about warranties, returns and faulty items?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

● latest blog

Discover  our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

by | Aug 11, 2026 |

LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.

LED Controls: Danfoss Drives Authorised Partner

LED Controls: Danfoss Drives Authorised Partner

by | Jan 17, 2026 |

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...

LED Controls: Your Complete Control Panel Solution

LED Controls: Your Complete Control Panel Solution

by | Jan 17, 2026 |

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...