Hydraulic Products, X65 Range - Premium ISO 16028 Flat-Face Quick Couplings

Series 365, DN10 Steel

  • Flat-Face design
  • One-hand operated
  • Extra security locking


CEJN Series 365 is a Flat-Face quick-connect coupling according to and exceeding the ISO 16028 Standard for low- and medium-pressure hydraulic applications. The Flat-Face design minimizes spillage during connection and disconnection. Series 365 couplings require only one hand for operation, making connection and disconnection fast and easy. Dust caps are available as accessories for both the coupling and nipple when disconnected to prevent dust and debris from entering the system. Series 365 couplings feature manual security locking as added protection against involuntary disconnection.


The couplings and nipples are also available in other sizes; DN 5 (Series 165), DN 6.3 (Series 265), DN 12.5 (Series 565), DN 16 (Series 665), DN 19 (Series 765), DN 25 (Series 065). For a stainless steel version see Series 366. Nipples with pressure eliminator available under Series 364.

Couplings Part No. Connection Length Diameter Hexagon Seal
Female thread 10 365 1104 103651104Rc 3/8" (BSPT)67.531.225NBR
 10 365 1105 103651105Rc 1/2" (BSPT)7131.227NBR
 10 365 1204 103651204G 3/8" (BSP)67.631.225NBR
 10 365 1205 103651205G 1/2" (BSP)70.931.227NBR
 10 365 1404 1036514043/8 NPT67.631.224NBR
 10 365 1405 1036514051/2" NPT7131.227NBR
 10 365 1604 1036516049/16"-18 UNF (3/8" SAE)67.531.224NBR
 10 365 1605 1036516053/4"-16 UNF (1/2" SAE)7131.227NBR
 10 365 1214 103651214G 3/8"67.531.224FPM
 10 365 1215 103651215G 1/2"67.531.224FPM
 10 365 1294 103651294G 3/8" JIS ORB67.531.225NBR
 10 365 1295 103651295G 1/2" JIS ORB7131.227NBR
Male thread 10 365 1552 103651552M16x1.5 10L7031.225NBR
 10 365 1554 103651554M18x1.5 12L7031.225NBR
 10 365 1557 103651557M18x1.5 12LS bulkhead9531.225.24NBR
 10 365 1555 103651555M22x1.5 15L7131.225NBR
 10 365 1558 103651558M22x1.5 15LS bulkhead973427.30NBR


Coupling for Panel mounting Part No. Connection Length Diameter Hexagon Seal
Female thread 10 365 1284 103651284G 3/8" (BSP)67.531.224NBR


Nipples Part No. Connection Length Diameter Hexagon Seal
Female thread 10 365 6104 103656104Rc 3/8" (BSPT)55.22825NBR/PUR
 10 365 6204 103656204G 3/8" (BSP)55.228.525NBR/PUR
 10 365 6214 103656214G 3/8"55.128.524FPM
 10 365 6205 103656205G 1/2" (BSP)58.530.427NBR/PUR
 10 365 6215 103656215G 1/2"55.128.524FPM
 10 365 6404 1036564043/8 NPT55.22825PUR/NBR
 10 365 6604 1036566049/16"-18 UNF (3/8" SAE)55.22825NBR/PUR
 10 365 6605 1036566053/4"-16 UNF (1/2" SAE)58.63027NBR/PUR
 10 365 6105 103656105Rc 1/2" (BSPT)58.630.227NBR/PUR
 10 365 6293 103656293G 3/8" JIS ORB5528.524NBR/PUR
 10 365 6296 103656296G 1/2" JIS ORB58.630.227NBR
 10 365 6405 1036564051/2" NPT58.630.227NBR
Male thread 10 365 6552 103656552M16x1.5 10L57.62825NBR/PUR
 10 365 6554 103656554M18x1.5 12L57.62825NBR/PUR
 10 365 6555 103656555M22x1.5 15L58.62825NBR/PUR
 10 365 6557 103656557M18x1.5 12LS bulkhead82.62825.24NBR/PUR
 10 365 6757 10365675711/16"-16 ORFS bulkhead80.630.525.27NBR/PUR
 10 365 6558 103656558M22x1.5 15LS bulkhead84.63427.30NBR/PUR


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
Temperature range: -30°C — +100°C (-22°F — +212°F)
Material coupling: Steel (zinc passivation)
Material nipple: Hardened steel (zinc passivation)
Material seal: Nitrile (NBR/PUR, other sealing materials on request)
Max. working pressure connected: 400 bar (5801 PSI)
Max. working pressure disconnected: 400 bar (5801 PSI)
Min. burst pressure connected: 1200 bar (17404 PSI)
Min. burst pressure disconnected: 1200 bar (17404 PSI)
Connectability: Only limited by operator strength
Disconnection under pressure: Not allowed
Interchangeable with: All brands dimensionally interchanging with ISO16028

Rated flow is measured at 0.1 MPa pressure drop.

Pressure drop chart
Series 365, DN10 Steel

Available files for download

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