A general , fluid transfer quick coupling that provides higher burst pressure and superior flow to that of Aeroquip FD56 (5600) series and 6600 series, while providing half-for-half interchangeability.heavy-duty detent ball latch design for reliable connection time after time.unique poppet/ design allows no extrusion space, minimizing seal degradation under extreme pressures. Stainless steel valve springs and retainer rings are standardThis is an A Quick Coupling, the body size is 3/8inch (10 mm), both the male and female ends are NPT 3/8inch Female Thread. A interchangeable couplings that can interchange with any 7241 A quick couplings, no matter the manufacturer of the quick couplings. A quick couplings are widely used in lots of general equipments, hydraulic tools, mobile hydraulics and otherequipments.The Features of this quick couplingBall lock - the connection between male and female part are ball lock mechanism, super easy to connect and disconnectpoppet valving - O seal ring to prevent the leakages, stableZinc platedNPT 3/8inch Female Thread - NPT is a National Pipe Thread Standard, 3/8inch NPT Female Thread, Not mean the thread inner diameter is3/8inch, you can check the thread, the inner diameter for the female 3/8inch NPT is about 0.58inch at the edge of the thread.Size :3/8inch NPT ThreadConnector Type:PlugThread Type :NPTInterchangeable with: HA15000 SeriesFemale- Socket: HA1522100Male - Plug: HA1522200 6600 SeriesFemale- Socket: 6601-6-6Male - Plug: 6602-6-6 Aeroquip FD56 SeriesFemale- Socket: FD56-1064-06-06Male - Plug: FD56-1062-06-06Fast NV SeriesFemale- Socket: NV 38 NPT FMale - Plug: NV 38 NPT MSafeway S56 SeriesFemale- Socket: S565-3Male - Plug: S561-3Colour:silverMaterial:alloy steelPackage Contents:1 x Hydraulic Quick Connect setOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.