EN 543.4 Fluid Level Sight Glasses Plastic, with Prismatic Reflector, resistant to 284° F (140° C)


EN 543.4 Plastic Fluid Level Sight Glasses with Prismatic Reflector, resistant to 284° F (140° C)
ELESA original design

code: HGFT.HT-PR

Product description


EN 543.4 Elesa® original design technopolymer plastic fluid level sight glasses.
Resistant to solvents, oils, grease and other chemical agents.

Window consists of a continuous series of prisms which offer a clear oil reading. It is embedded when spraying the housing and is therefore completely leak free.
Seal is embedded in a radial undercut and will not extrude during tightening.
A moderate torque (not exceeding 3-12 Nm) is recommended when tightening oil level indicator so as to guarantee optimal tightness without any elastic deformation. Full details regarding torque available upon request.

Maximum continuous working temperature at 7 Bar pressure: 284°F (140°C).

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


Technopolymer (Polyamide PA)
  • black, matte
  • temperature resistant up to 284° F (140° C)

Sight glass
Plastic Polysulfon
  • pressure resistant up to 7 bar

FPM rubber (Viton®)

RoHS compliant


GN 543.1 nuts

Technical drawing

Hide technical drawing
EN 543.4 Plastic Fluid Level Sight Glasses with Prismatic Reflector, resistant to 284° F (140° C) sketch

Part Options / Table

Show / Hide columns


Dimensions in: Inch (change to Metric)
Pipe Thread
.59G 1/
.71G 3/

Build & Price

Window glass d1
Thread d2

Selected Part

Total USD (net)
In stock: 1
Call / Email for Delivery Time
Please note our quantity discounts (USD).
≥ 250$5.89
Weight: 0.013 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
RoHS compliant: -
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
All Prices are in US Dollars. Taxes Not Included.

CAD data

Quick Download

To download CAD data without creating an account, please enter your e-mail address. Max of 3 CAD downloads 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: 800-877-8351
Fax: 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.