GN 743 Oil level sight glasses Aluminum / Natural glass


GN 743 Oil level sight glasses, Aluminum / Float glass, up to 100 °C, blank Type: A - with contrast screen, blank

Product description


Oil level sight glasses GN 743 offer genuine glass of high stability and scratch proof. The sealing is achieved with an O-ring on the periphery and not on the face edge of the glass. Leak tightness is therefore not affected by axial pressures.

The outside diameter of these oil level sight glasses with recessed hexagon is chosen to match mounting holes for tube connections according to DIN 3852.

The seal is housed in a groove and it can therefore not be lost. In addition, this groove prevents the seal from being extruded when the sight glass is tightened.

Oil level sight glasses GN 743 can be used on pressurised oil tanks. Tests regarding maximum pressure are available on request.

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


fine turned

Technopolymer (Polsysulfon)

Sight glass
Float glass
temperature resistant up to 100 °C

Rubber NBR (Perbunan®)


Mounting nuts GN 543.1

On request

EPDM seals

Technical drawing

Hide technical drawing
GN 743 Oil level sight glasses, Aluminum / Float glass, up to 100 °C, blank sketch

Article options / Table


Awith contrast screen, blank
Bwithout contrast screen, blank
Show / Hide columns
7G 1/4M 14 x 1,5-207,56,518
11G 3/8M 16 x 1,5-2287,520
14G 1/2M 20 x 1,5-268,57,523
18G 3/4M 26 x 1,5M 27 x 1,5329830
24G 1M 33 x 1,5-40118,536
32G 11/4M 40 x 1,5M 42 x 1,55012946
32G 11/2--6013955

Build & Price


Window glass d1
Inch thread d2
Fine thread d1

Selected Part (How to order)

Weight: 0,006 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 compliant: -
This article does not conform to RoHS.
For RoHS conforming alternative products, please contact our Sales Department!
Phone +49 7723 6507- 0
Please note our quantity discounts.
With a total value (net) per order:
from 150 Euro -> 10 % discount
from 250 Euro -> 20 % discount
from 350 Euro -> 30 % discount
All prices in accordance with our price list No. 51, valid from 1 February 2018, plus VAT only valid for Germany.

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