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GN 7403 Breather Strainers Stainless Steel, with Stainless Steel Mesh



Product Family Stainless Steel

Standard parts made of rustproof stainless steel have been designed for use in the food sector, in the chemical industry, for aggressive ambient conditions or for outdoor use.

  • corrosion-resistant
  • precise fit
  • environmentally friendly
Show all Stainless Steel products

Product description


GN 7403 breather strainers are used in enclosure and device construction.
Mounted into the wall of the enclosure, they ensure pressure equilibrium between the inside of the enclosure and the outside.

The outside diameter of the enclosure with the recessed hexagon matches the bolt mounting holes for DIN 3852 threaded pipe connectors.
Any dirt and dust particles carried by the medium (usually gas) are prevented from exiting, depending on the mesh size. This protects the insides of sensitive devices and machinery parts from dirt and pollution and also protects the environment from any exiting dust.

Sealing ring is embedded in a radial and plane-sided recess which makes the seal captive, and prevents it from being squeezed out during tightening.

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


  • Stainless steel
    AISI 303, European Standard No. 1.4305

  • Stainless steel mesh
    AISI 304, European Standard No. 1.4301

Strainer bezel
  • Glass fiber reinforced plastic (Polyamide PA)
  • Maximum heat resistance 212° F (100° C)

  • NBR synthetic rubber (Perbunan)

RoHS compliant


Mounting nuts GN 543.1

On request

Body in brass
Other mesh size
Other material for the strainer

Technical drawing

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GN 7403 Stainless Steel Breather Strainers, with Stainless Steel Mesh sketch

Part Options / Table

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Dimensions in: Inch | Metric
ThreadMesh size in µmd2d3l1l2s
G 1/2M 20 x 1.51005001.020.390.330.300.91
G 3/4M 26 x 1.51005001.260.550.350.311.18
G 1M 33 x 1.51005001.570.790.430.331.42

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Total US Dollars (net)
In stock: 0
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Please note our quantity discounts (US Dollars).
≥ 250$14.16
Prop 65: Not compliant
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
RoHS: Compliant
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)).
Weight: 0.044 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
All Prices are in US Dollars. Taxes Not Included.

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