GN 743.7 Oil level sight glasses with conical thread Brass/ natural glass, resistant up to 100°C


GN 743.7 Oil level sight glasses with conical thread

Product description


The conical thread of the oil level sight glasses GN 743.7 makes a metallic seal possible. When tightening the conical male thread R it blocks itself with the appropriate cylindrical female thread Rp.

With the datum plane a the R-male thread has the same thread diameter as the Rp-female thread, so that it can be screwed in by hand. The strong tightening by means of a tool increases the length of engagement and seals the screw connection. Additionally a sealant (hemp or teflon band) is usually used. The R-thread is „roughened“, so that the sealant does not shift when screwing in.



Contrast screen
Technoploymer (Polysulfon)

  • temperature resistant up to 100 °C
  • Sight glass float-glass
  • O-rings rubber
    NBR (Perbunan)

RoHS compliant

On request

EPDM O-rings

Technical drawing

Hide technical drawing
GN 743.7 Oil level sight glasses with conical thread sketch

Article options / Table


Awith contrast screen
Bwithout contrast screen
Show / Hide columns
Male thread
at a
Female thread

11R 3/86,416,7Rp 3/8-2213610,1191,34
113/8 NPT6,117,1-3/8 NPT22156-19,11,41
14R 1/28,221Rp 1/2-27,517713,2241,81
141/2 NPT8,121,2-1/2 NPT27,5167-23,81,81
18R 3/49,526,4Rp 3/4-3118814,5271,81
183/4 NPT8,626,6-3/4 NPT33188-28,61,81
24R 110,433,2Rp 1-40,521916,8362,30
241 NPT10,233,7-1 NPT41,5228-34,92,21
32R 1 1/412,742Rp 1 1/4-5324919,1462,30
321 1/4 NPT10,742,2-1 1/4 NPT51,5239-44,52,21

Build & Price

Window glass d1
Thread d2

Selected Part (How to order)

Weight: 0,019 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: 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)).
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.

CAD data


For getting CAD data please enter you Email adress. But we would be pleased, if you are fully registered.

Please enter the code you can find in the picture.

Save as favourite

Please enter the code you can find in the picture.

Do you find your product ?

Our Service-Team is available from Monday to Friday from 7:00 until 17:30: +49 7723 6507 - 100

To the customised elements | To the contact persons

This could also be interesting...


Our service team is available from Monday to Friday between 7am and 5:30pm:

+49 7723 6507 - 0

Or use the practical callback service:

Privacy Policy

Ganter Catalogue

The new catalogue 16.0 with countless standard parts and elements and many exciting ideas for constructive problem solutions.


Ask for it free of charge

Ganter sales partners

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