Two metal hose adapters with male threads and knurled grip on a white background.
Nominal Diameter 7.4mm

076 Series | Safety Lock Breathing Air Quick Release Couplings & Plugs

The 076 Series is a 7.4mm nominal bore safety lock quick release coupling designed for breathing air applications where secure, reliable connections are essential. Combining the proven 073 Series safety lock coupling with the 074 Series breathing air plug, this configuration provides a dependable connection for compressed breathing air systems and hose line assemblies.

The integrated push-to-release safety mechanism requires the plug to be pushed further into the coupling before it can be disconnected. This deliberate two-stage operation helps prevent accidental disconnection while allowing fast, single-handed operation when intentional release is required.

Available with BSPT male thread, BSPP female thread and hose tail terminations, the 076 Series delivers high flow with low pressure drop, making it suitable for breathing air hose systems, industrial air line equipment and safety-critical compressed air applications. Coupling and plug caps are available separately.

Technical drawing of a bottle with a rounded cap, showing overall height 25.0 units; neck diameters Ø9.9, Ø11.95, Ø10.8, Ø9.6; large '076' printed on the label.

Male Thread BSPT Coupling

Part Number Termination Length Diameter
076CSMT14BNN 1/4" 61mm 23mm
076CSMT38BNN 3/8" 60mm 23mm
076CSMT12BNN 1/2" 61mm 23mm

Female Thread BSPP Coupling

Part Number Termination Length Diameter
076CSFP14BNN 1/4" 56mm 23mm
076CSFP38BNN 3/8" 56mm 23mm
076CSFP12BNN 1/2" 56mm 23mm

Hosetail Coupling

Part Number Termination Length Diameter
076CSHT06BNN 6mm 74mm 23mm
076CSHT08BNN 8mm 77mm 23mm
076CSHT09BNN 9mm 74mm 23mm
076CSHT10BNN 10mm 74mm 23mm
076CSHT13BNN 13mm 74mm 23mm

Male Thread BSPT Plug

Part Number Termination Length
076PNMT14BXN 1/4" 42mm
076PNMT38BXN 3/8" 42mm

Female Thread BSPP Plug

Part Number Termination Length
076PNFP14BXN 1/4" 38mm
076PNFP38BXN 3/8" 38mm

Hosetail Plug

Part Number Termination Length Diameter
076PNHT06BXN 6mm 51mm 12mm
076PNHT09BXN 9mm 51mm 12mm
076PNHT13BXN 13mm 51mm 12mm

Advantages

  • Push-to-release safety lock helps prevent accidental disconnection.
  • High flow, low pressure drop for efficient breathing air delivery.
  • Robust, corrosion-resistant construction for long service life in demanding environments.
  • Suitable for breathing air hose systems and industrial compressed air applications.

Technical Specifications

Coupling Specifications

Back Body: Brass (MS 58) Nickel Plated
Valve Body: Brass (MS 58) Nickel Plated
Sleeve: Brass (MS 58) Nickel Plated
Spring: Stainless Steel 301
Locking Ring: Stainless Steel 301
Locking Balls: Stainless Steel 301

Plug Specifications

Plug Body: Brass (MS 58)

Working Limits

Working Temperature

-20°C to +100°C (NBR)
-40°C to +130°C (EPDM)
-15°C to +200°C (Viton)

Depending on Medium

Working Pressure

35 Bar (safety factor 4:1)

Maximum static working pressure with safety factor 4:1

Interchangeability

Interchangeable With:

No interchangeables listed.

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