GANTER Screw Plug GN 749 Steel M8×1 with NBR Seal – High Pressure Sealing Plug

GANTER Screw Plug GN 749 – Steel M8×1 with NBR Sealing Ring

The GANTER GN 749 screw plug is a precision sealing component designed for closing threaded openings in hydraulic systems, machine housings, and industrial equipment.

The dimensions of the GN 749 plug largely correspond to DIN 908, while the outer diameter is adapted for threaded holes according to DIN 3852 pipe fitting standards.

Unlike the standard DIN version, this model includes an integrated elastic sealing ring made of NBR (Perbunan®). The seal is positioned within a radial and flat recess, ensuring it remains securely in place during installation and cannot be squeezed out when tightening.

This design improves reliability in high-pressure applications, offering secure sealing and easy installation without the risk of losing the sealing element.

Main Features

• Screw plug according to GN 749 standard

• Dimensions largely compatible with DIN 908

• Integrated NBR rubber sealing ring (Perbunan®)

• Seal embedded in recess to prevent loss or deformation

• Suitable for high-pressure industrial systems

• Durable steel construction

Technical Specifications

Thread type:

M8 × 1 (fine thread)

Material:

Steel (ST)

Seal type:

NBR rubber (Perbunan®)

Bore diameter:

12 mm

d3:

9.9 mm

Length (l1):

8 mm

Length (l2):

4 mm

Wrench size (s):

4 mm

Recommended tightening torque:

8 Nm

Maximum permissible operating pressure:

400 bar

Weight:

0.004 kg

Manufacturer: GANTER

Model: 749-M8X1-A

Condition: New (2024)

Scope of Application

Suitable for:

– Hydraulic systems

– Industrial machinery

– Machine tool assemblies

– Mechanical equipment maintenance

– Fluid system sealing applications