Hydraulic Products, ISO B Stainless Steel Couplings & Nipples

Series 376, DN6.3

  • ISO B Standard
  • Stainless steel design
  • Working pressure up to 3630 PSI (250 bar)


CEJN Series 376 features quick-connect couplings and nipples are manufactured according to ISO Standard 7241-1 B. The solid design makes them particularly suitable for strenuous applications in the iron, steel, oil, food and automotive industry. Series 376 is a stainless steel version.


The couplings and nipples are also available in four larger sizes; DN 10 (Series 476), DN 12.5 (Series 576), DN 20 (Series 676), DN 25 (Series 776). For a steel version see Series 375.

Couplings Part No. Connection Length Diameter Hexagon Seal
Female thread 10 376 1202 103761202G 1/4"572719FPM
 10 376 1402 1037614021/4" NPT572719FPM


Nipples Part No. Connection Length Diameter Hexagon Seal
Female thread 10 376 6202 103766202G 1/4"3520.819FPM
 10 376 6402 1037664021/4" NPT3520.819FPM


Check with an authorized CEJN distributor for availability and prices. Other connections and sealing material on request. Some part numbers may be subject to minimum order quantities. CEJN reserves the right to make changes without further notification. Thread connections are listed according to ISO Standards. All measurements are in mm.
Technical data
Nominal flow diameter: 6.3 mm (1/4")
Max. Suggested Flow: 24 l/min ( GPM UK)
Max. working pressure connected: 25.0 MPa
Max. working pressure disconnected: 25.0 MPa
Min. burst pressure connected: 140.0 MPa
Min. burst pressure disconnected: 140.0 MPa
Temperature range: -15°C — +180°C (5°F — +356°F)
Material coupling: Stainless steel/brass
Material nipple: Stainless steel/brass
Material seal: Viton (FPM)
Connectability: Without pressure
Disconnection under pressure: Not allowed
Pressure drop chart
Pressure drop, PSI Series 376, DN6.3 Flow, GPM

Available files for download

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