EN 546 Dome-Shaped Fluid Level Sight Glasses Technopolymer Plastic, resistant to 212° F (100° C)


ELESA original design
code: HCFE.

Product description


EN 546 Elesa® original design technopolymer plastic dome-shaped fluid level sight glasses.
Mainly used as oil circulation indicators.

Practically indestructible; even if high torque is applied there is no danger of breakage.

Resistant to aging, not alcohol resistant.

Because of the high strength of the material (considerably stronger than, for example, Plexiglass), these site glasses can be produced with much thinner walls, resulting in clearer visibility. The ratio between bore diameter and the viewing window is much improved.
A moderate torque (not exceeding 3-12 Nm) is recommended when tightening oil sight glass so as to guarantee optimal tightness without any elastic deformation.

Assembly instruction:
For mounting on walls of less than 4 mm thickness please use a GN 543.1 nut.


Sight glass
  • Special transparent polyamide technopolymer plastic (PA 6-T)

  • NBR rubber (Perbunan)

RoHS compliant


GN 543.1 nuts

On request

Full details regarding torque available

Technical drawing

Hide technical drawing
EN 546 Technopolymer Plastic Dome-Shaped Fluid Level Sight Glasses, resistant to 212° F (100° C) sketch

Part Options / Table

Show / Hide columns


Dimensions in: Inch (change to Metric)
Pipe Thread
tightening torque
in Nm
0.59G 3/80.890.300.510.753 ... 5
0.75G 1/21.020.410.630.874 ... 6
0.98G 3/41.240.410.771.066 ... 8
1.22G 11.650.430.941.428 ... 10
1.50G 11/41.830.451.041.5912 ... 15

Build & Price

3D Product Configurator
Window glass d1
Pipe Thread d2

Selected Part

Total US Dollars (net)
In stock: 31
In stock
Please note our quantity discounts (US Dollars).
≥ 250$2.52
Prop 65: -
Please contact our Sales Department for more information: 800-877-8351
RoHS: -
This part is new in our product range, no details are available at this time. For more recent details on the RoHS compatibility, please contact our Sales Department!
Phone: 800-877-8351
Weight: 0.007 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
All Prices are in US Dollars. Taxes Not Included.

CAD Download

Email CAD File

To receive an email with a CAD download without creating an account, please enter your e-mail address. Max of 3 CAD files per day unless you create an account.

Please enter the code you can find in the picture.

Save as Favorites

Please enter the code you can find in the picture.

Need Help?

Our service team is available from Monday to Friday between 7:30 AM and 5:00 PM Central Time: 800-877-8351

Special Requests | Contact our sales team

This could also be interesting...

JW Winco - Contact

United States
E-Mail: sales@jwwinco.com
Phone: +1-800-877-8351
Fax : +1-800-472-0670
Hours M-F 7:30 AM - 5:00 PM CT

Request Callback:

Privacy Policy

Request a Catalog

Request one of our many catalogs! For an overview of our products request the Product Overview Catalog (POC).

Request Free Catalogs

Sales Contacts

You are looking for a Winco partner near you? Please select the country.