Products | J.W. Winco Standard Parts

EN 541.2 Plastic Fluid Level Sight Glasses Prismatic, with Exposed Seal


ELESA original design
code: HFTX.PR

Product description


EN 541.2 Elesa® original design technopolymer plastic fluid level sight glasses.

These crystal-clear oil level sight glasses are fitted with a window creating the prismatic effect of a "cat’s eye" to provide a clear oil level reading regardless of oil color or viscosity. The advantage of this is obvious in cases such as underfilling or overfilling, or monitoring the level under unfavorable conditions.

Resistant to solvents, oils, grease and other chemical agents.

EN 541.2 Fluid level sight glass can also be used in tanks which are pressurized. Test results are available.

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


  • Special Transparent polyamide technopolymer plastic
  • Solvent resistant,
    but not suitable for alcohol
  • Temperature resistant up to 212°F (100 °C)

Sight Window
  • Prismatic

Flat seal
  • NBR synthetic rubber (Perbunan)

RoHS compliant


GN 543.1 nuts

Technical drawing

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EN 541.2 Plastic-Prismatic Fluid Level Sight Glasses, with Exposed Seal sketch

Part Options / Table

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Dimensions in: Inch (change to Metric)
Window glass
tightening torque
in Nm
0.35G 1/40.710.390.240.592 ... 3
0.43G 3/80.870.300.280.753 ... 5
0.55G 1/21.020.410.310.874 ... 6
0.79G 3/41.240.410.351.066 ... 8
0.98G 11.570.430.391.348 ... 10

Build & Price

Window glass d1
Thread d2

Selected Part

Total US Dollars (net)
In stock: 0
Call / Email for Delivery Time
Please note our quantity discounts (US Dollars).
≥ 1$2.68
Weight: 0.004 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
RoHS compliant: Yes
This article conforms to RoHS, which means it complies with EU Directive 2011/65/EU for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
All Prices are in US Dollars. Taxes Not Included.

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