J.W. Winco

Our customers in the USA are managed by J.W. Winco. Please, use the website of J.W. Winco: jwwinco.com

GN 541 Oil level sight glasses Crystal-clear plastic


GN 541 Oil level sight glasses, Plastic Type: A - with reflector
ELESA Original design
code: HFTX.
Type: A - with reflector
GN 541 Oil level sight glasses, Plastic Type: A - with reflector GN 541 Oil level sight glasses, Plastic Type: B - without reflector

Product description


Oil level sight glasses GN 541 are practically indestructible. Even at high torque there is no danger of any breakage.

These oil level sight glasses can also be used in tanks which are pressurised. The max permissible pressure is dependent on the tank size operating conditions (i.e. temperature). Test results are available.

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


Crystal-clear Polyamid (PA 6-T)
  • ageing resistant
  • high mechanical strength,
    but not suitable for alcohol
  • temperature resistant up to 100 °C
  • solvent resistant,
    but not suitable for alcohol

Rubber NBR (Perbunan®)

natural color, anodized



Mounting nuts GN 543.1

Technical drawing

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GN 541 Oil level sight glasses, Plastic sketch

Article options / Table


Awith reflector
Bwithout reflector
Show / Hide columns
Window glass
tightening torque in Nm
11M 16 x 1,5-2287192 ... 3
14M 20 x 1,5-269,58228 ... 10
18M 25 x 1,5-31,589278 ... 10
18M 26 x 1,5-31,5139278 ... 10
20M 27 x 1,5-31,599278 ... 10
22M 30 x 1,5-35910308 ... 10
25M 35 x 1,5-401110348 ... 10
30M 40 x 1,5-47,511,51340,58 ... 10
9-G 1/418106152 ... 3
11-G 3/8227,57193 ... 5
14-G 1/22610,58224 ... 6
20-G 3/431,510,59276 ... 8
25-G 1401110348 ... 10
30-G 11/447,511,51340,5810

Build & Price

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Window glass d1
Fine thread d2
Inch thread d2

Selected Part (How to order)

Total (net)
plus VAT 0,26 €
gross 1,63 €
In stock
Weight: 0,002 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone+49 7723 6507 - 0
RoHS: Yes
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/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)).
Please note our quantity discounts.
With a total value (net) per order:
from 175,00 Euro -> 10 % discount
from 275,00 Euro -> 20 % discount
from 375,00 Euro -> 30 % discount
With a total value (net) per order:
All prices in accordance with our price list No. 52, valid from 1 May 2019, plus VAT only valid for Germany.

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J. W. Winco, our Partner in the USA
Our customers in the USA are served by J. W. Winco. Please use the website of J. W. Winco.
J. W. Winco, unser Partner in der USA
Unsere Kunden in der USA werden durch J. W. Winco betreut. Bitte benutzen Sie die Webseite von J. W. Winco.
Go to J. W. Winco
Zu J. W. Winco wechseln

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