We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
RFQ CartGet a QuoteSign inSign up
N-FERNO BY ERGODYNE Hard Hat Liner: Polyester, Ears/Head, Hook-and-Loop, Black - Hard Hat Liners
N-FERNO BY ERGODYNEHard Hat Liners

N-FERNO BY ERGODYNE Hard Hat Liner: Polyester, Ears/Head, Hook-and-Loop, Black

The N-FERNO BY ERGODYNE Hard Hat Liner (MPN 6840) is a universal-size, reusable polyester fleece liner that covers the head and ears, secured with hook-and-loop closure and attachment. It features an elastic fit, is…

SKU 3G-OTH-556587

Brand
N-FERNO BY ERGODYNE
Item
Hard Hat Liner: Polyester, Ears/Head, Hook-and-Loop, Black
Category
Hard Hat Liners
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

N-FERNO BY ERGODYNE
Manufacturer Part Number
6840
Type
Ears/Head, Hook-and-Loop, Black, Universal
Size
Universal
Outer
Black
Cooling
No
Features
Elastic Fit
Includes
Liner only
Reusability
Reusable
Closure Type
Hook-and-Loop
Areas Covered
Head
Adjustment Type
Hook-and-Loop
Attachment Type
Hook-and-Loop
Lining Material
100% Polyester Fleece
Includes Face Mask
No
Includes Neck Shade
No
Compatible with Series
N-Ferno
Includes Face Mask Broad2
None
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

N-FERNO BY ERGODYNE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The N-FERNO BY ERGODYNE Hard Hat Liner (MPN 6840) is a universal-size, reusable polyester fleece liner that covers the head and ears, secured with hook-and-loop closure and attachment. It features an elastic fit, is black, and includes the liner only—no face mask or neck shade. Compatible with the N-Ferno series, this liner provides cold-weather protection without cooling features.

Frequently Asked Questions

What is the N-FERNO BY ERGODYNE Hard Hat Liner used for?

The N-FERNO BY ERGODYNE Hard Hat Liner (MPN 6840) provides cold-weather protection for workers who wear hard hats. It covers the head and ears with a 100% polyester fleece lining, secured by hook-and-loop closure. This reusable liner is ideal for construction, oil and gas, and outdoor industrial applications where warmth is needed without adding a face mask or neck shade.

What are the specifications of the N-FERNO BY ERGODYNE Hard Hat Liner?

The N-FERNO BY ERGODYNE Hard Hat Liner (MPN 6840) is universal size, made of 100% polyester fleece, and covers the head and ears. It features hook-and-loop adjustment and attachment, an elastic fit, and is black. The liner is reusable, includes no cooling, no face mask, and no neck shade. It is compatible with the N-Ferno series.

Where to buy the N-FERNO BY ERGODYNE Hard Hat Liner worldwide?

3G Electric supplies the N-FERNO BY ERGODYNE Hard Hat Liner (MPN 6840) to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source genuine N-Ferno liners for cold-weather hard hat protection.

How to install the N-FERNO BY ERGODYNE Hard Hat Liner?

To install the N-FERNO BY ERGODYNE Hard Hat Liner (MPN 6840), attach the hook-and-loop strips inside your hard hat suspension, then adjust the liner to cover your head and ears. The elastic fit and hook-and-loop closure allow secure positioning. Ensure the liner does not interfere with the hard hat's fit or impact performance. Follow the manufacturer's instructions for best results.

N-FERNO BY ERGODYNE Products

3G Electric supplies N-FERNO BY ERGODYNE hard hat liners. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from N-FERNO BY ERGODYNE

View all N-FERNO BY ERGODYNE parts →
N-FERNO BY ERGODYNE Hard Hat Liner: Cotton, Ears/Head/Neck, Hook-and-Loop, Black, Universal (MPN 6852). Key specifications — Adjustment Type: Hook-and-Loop; Compatible with Grainger Part Number: 55JF11; Attachment Type: Hook-and-Loop; Compatible with Series: N-Ferno; Includes: Liner only; Cooling: No; Compatible with Manufacturer Model Number: 6874; Closure Type: Hook-and-Loop.
N-FERNO BY ERGODYNE
N-FERNO BY ERGODYNE Hard Hat Liner: Cotton, Ears/Head/Neck, Hook-and-Loop, Black, Universal (MPN 6852). Key specifications — Adjustment Type: Hook-and-Loop; Compatible with Grainger Part Number: 55JF11; Attachment Type: Hook-and-Loop; Compatible with Series: N-Ferno; Includes: Liner only; Cooling: No; Compatible with Manufacturer Model Number: 6874; Closure Type: Hook-and-Loop.
N-FERNO BY ERGODYNE Hard Hat Liner: Nylon, Ears/Head/Neck, Hook-and-Loop, Black, Universal (MPN 16952). Key specifications — Adjustment Type: Hook-and-Loop; Attachment Type: Hook-and-Loop; Compatible with Series: N-Ferno; Includes: Liner only; Cooling: No; Closure Type: Hook-and-Loop; Includes Neck Shade: Yes; Areas Covered: Neck.
N-FERNO BY ERGODYNE
N-FERNO BY ERGODYNE Hard Hat Liner: Nylon, Ears/Head/Neck, Hook-and-Loop, Black, Universal (MPN 16952). Key specifications — Adjustment Type: Hook-and-Loop; Attachment Type: Hook-and-Loop; Compatible with Series: N-Ferno; Includes: Liner only; Cooling: No; Closure Type: Hook-and-Loop; Includes Neck Shade: Yes; Areas Covered: Neck.
N-FERNO BY ERGODYNE Hard Hat Liner: Polyester, Ears/Head, Black, Universal, Pull-On, Pull-On (MPN 6810). Key specifications — Attachment Type: Pull-On; Compatible with Series: N-Ferno; Includes: Cap only; Cooling: No; Closure Type: Pull-On; Includes Neck Shade: No; Areas Covered: Head; Lining Material: 100% Polyester.
N-FERNO BY ERGODYNE
N-FERNO BY ERGODYNE Hard Hat Liner: Polyester, Ears/Head, Black, Universal, Pull-On, Pull-On (MPN 6810). Key specifications — Attachment Type: Pull-On; Compatible with Series: N-Ferno; Includes: Cap only; Cooling: No; Closure Type: Pull-On; Includes Neck Shade: No; Areas Covered: Head; Lining Material: 100% Polyester.
N-FERNO BY ERGODYNE Hard Hat Liner: Polyester, Ears/Head/Neck, Hook-and-Loop, Black, Universal (MPN 6867). Key specifications — Adjustment Type: Hook-and-Loop; Attachment Type: Hook-and-Loop; Compatible with Series: N-Ferno; Includes: Liner only; Cooling: No; Closure Type: Hook-and-Loop; Includes Neck Shade: Yes; Areas Covered: Head.
N-FERNO BY ERGODYNE
N-FERNO BY ERGODYNE Hard Hat Liner: Polyester, Ears/Head/Neck, Hook-and-Loop, Black, Universal (MPN 6867). Key specifications — Adjustment Type: Hook-and-Loop; Attachment Type: Hook-and-Loop; Compatible with Series: N-Ferno; Includes: Liner only; Cooling: No; Closure Type: Hook-and-Loop; Includes Neck Shade: Yes; Areas Covered: Head.
N-FERNO BY ERGODYNE Hard Hat Liner: Cotton/Modacrylic, Ears/Head/Neck, Hook-and-Loop, Black (MPN 6877). Key specifications — Adjustment Type: Hook-and-Loop; Attachment Type: Hook-and-Loop; Compatible with Series: N-Ferno; Includes: Liner only; Cooling: No; Closure Type: Hook-and-Loop; Includes Neck Shade: Yes; Areas Covered: Ears.
N-FERNO BY ERGODYNE
N-FERNO BY ERGODYNE Hard Hat Liner: Cotton/Modacrylic, Ears/Head/Neck, Hook-and-Loop, Black (MPN 6877). Key specifications — Adjustment Type: Hook-and-Loop; Attachment Type: Hook-and-Loop; Compatible with Series: N-Ferno; Includes: Liner only; Cooling: No; Closure Type: Hook-and-Loop; Includes Neck Shade: Yes; Areas Covered: Ears.
N-FERNO BY ERGODYNE Hard Hat Liner: Cotton, Ears/Head, Hook-and-Loop, Black, Universal, Medium Duty (MPN 6850). Key specifications — Adjustment Type: Hook-and-Loop; Compatible with Grainger Part Number: 35YY87; Attachment Type: Hook-and-Loop; Compatible with Series: N-Ferno; Includes: Liner only; Cooling: No; Compatible with Manufacturer Model Number: 6870; Closure Type: Hook-and-Loop.
N-FERNO BY ERGODYNE
N-FERNO BY ERGODYNE Hard Hat Liner: Cotton, Ears/Head, Hook-and-Loop, Black, Universal, Medium Duty (MPN 6850). Key specifications — Adjustment Type: Hook-and-Loop; Compatible with Grainger Part Number: 35YY87; Attachment Type: Hook-and-Loop; Compatible with Series: N-Ferno; Includes: Liner only; Cooling: No; Compatible with Manufacturer Model Number: 6870; Closure Type: Hook-and-Loop.
N-FERNO BY ERGODYNE Hard Hat Liner: Cotton, Ears/Face/Head/Neck, Hook-and-Loop, Black, Universal (MPN 6871). Key specifications — Adjustment Type: Hook-and-Loop; Attachment Type: Hook-and-Loop; Compatible with Series: N-Ferno; Includes: Thermal Fleeced Lined Mouthpiece with Cotton Shell; Cooling: No; Closure Type: Hook-and-Loop; Includes Neck Shade: Yes; Areas Covered: Neck.
N-FERNO BY ERGODYNE
N-FERNO BY ERGODYNE Hard Hat Liner: Cotton, Ears/Face/Head/Neck, Hook-and-Loop, Black, Universal (MPN 6871). Key specifications — Adjustment Type: Hook-and-Loop; Attachment Type: Hook-and-Loop; Compatible with Series: N-Ferno; Includes: Thermal Fleeced Lined Mouthpiece with Cotton Shell; Cooling: No; Closure Type: Hook-and-Loop; Includes Neck Shade: Yes; Areas Covered: Neck.
N-FERNO BY ERGODYNE Hard Hat Liner: Cotton/Modacrylic, Ears/Head, Hook-and-Loop, Black, Universal (MPN 6860). Key specifications — Adjustment Type: Hook-and-Loop; Compatible with Grainger Part Number: 55JF11; Attachment Type: Hook-and-Loop; Compatible with Series: N-Ferno; Includes: Liner only; Cooling: No; Compatible with Manufacturer Model Number: 6874; Closure Type: Hook-and-Loop.
N-FERNO BY ERGODYNE
N-FERNO BY ERGODYNE Hard Hat Liner: Cotton/Modacrylic, Ears/Head, Hook-and-Loop, Black, Universal (MPN 6860). Key specifications — Adjustment Type: Hook-and-Loop; Compatible with Grainger Part Number: 55JF11; Attachment Type: Hook-and-Loop; Compatible with Series: N-Ferno; Includes: Liner only; Cooling: No; Compatible with Manufacturer Model Number: 6874; Closure Type: Hook-and-Loop.