WSC Series

Brass wing style screw connect couplers with steel nut

AKJia’s WSC Series brass screw connect couplers are designed to allow connection and disconnection by hand. The brass construction makes them the idea choice for water based applications.


  • Brass body
  • Wing nut carbon steel with trivalent plating
  • Fitted with Nitrile seals
Datasheet Inquiry
WSC Series - Brass wing style screw connect couplers with steel nut - Trailers, wet line kits


  • Screw connect design eliminates brinelling
  • Wing nut sleeve design allows connection by hand
  • Can be connected with up to 50 bar residual pressure in the hydraulic circuit
  • Bidirectional flow


  • Trailers
  • Wet line kits
  • Oil and gas


Brass Wing nut Quick Coupling are widely used in dump trailers, live bed trailers,mobile drilling rigs, and and salt spreaders. Interchangeable with Parker 6100 Series, Aeroequip 5100 Series, Dixon W Series, Faster FB Series, Snap-Tite 78 Series, Stucchi W Series etc.

Available Seals and Temperature Range

All carbon steel products have Nitrile Butadiene Rubber (NBR) seals fitted as standard. All stainless steel products have Fluoro-elastomer Rubber (Viton®) (FKM) seals fitted as standard. Special seal materials are available on request.

Abbreviation Trade Name Chemical Name Min. Temp Max. Temp
NBR, XNBR Chemigum®,  Hycar8,  Breon®,  Butakon®, Butacril®, Buna-N®, Perbunan®, Paracril®, Krynac®, Europrene-N®, Nipol® Nitrile Butadiene Rubber
Carboxylated Nitrile Rubber
-40ºC (-40ºF) 106ºC (223ºF)
FKM(FPM) Dai-el®, Fluorel®, Tecnoflon®, Viton® Fluoro-elastomer Rubber -20ºC (-4ºF) 200ºC (392ºF)
EPR, EPDM Buna-AP®, Dufral®, Epsyn®, Nordel®, Epcar8, Keltan®, Royalene®, Polysar-EPDM® Ethylene Propylene Copolymer
Ethylene Propylene Terpolymer
-50ºC (-58ºF) 120ºC (248ºF)
FVMQ Silastic 1S®, FSE® Fluorosilicone Rubber -65ºC (-85ºF) 170ºC (338ºF)
FFKM Perlast®, Kalrez®, Chemraz®, Kaflon® Perfluoroelastomer -25ºC (-13ºF) 300ºC (572ºF)