Thread size of 4AN male coupler is 7/16-20 JIC, is widely used in Oil / Fuel / Water / Fluid / Airline / Gas hose can use to splice or extend a line, works with female thread fitting.Male union fittings can works with Swivel fitting, push lock fitting and female AN fittings.Please match the correct size.
Male to male flares coupler usually used in fuel system,such as fuel hose extend, line connect to fuel filter, fuel pump, cooler system.Easy to install. Apply a bit of petroleum jelly to o-ring before installation, screw fitting into mating part until preformed packing is fully seated in mating packing seat. Tighten fitting until snug. Check fitting for leakage during system start up. If leaking, loosen connecting tube or hose and tighten fitting. Re-tighten tube or hose.
High-quality materials:Black 6061-T6 aluminum 4AN flare union are made of high-quality aluminum alloy material for strong strength. Anodized and hand polished finish add the final touch of quality and protection. Black anodized for great appearance and anti-corrosion, superior thread strength.
Work temperature: -65 to +252 degree F, max pressure: 1000 psi, ultimate torque: 17N.The o-ring is made of NBR, features with excellent oil resistance and heat-resisting (Temperature Range: -40F° to +250F°)Package Included: 2 pcs x 4AN to 4AN Male Flare Coupling Union Adapter,2 pcs x O-ring
Professional after-sales:4AN flare union adapter can be reused and recycle. We value your shopping experience and strive to offer a high-quality product and service.If you have any problems or dissatisfaction after receiving the products, please contact us directly to get New Replacement or Return.