{"product_id":"coilhose-pneumatics-581a-3-8-inch-brass-pneumatic-coupler","title":"Coilhose Pneumatics 581A 3\/8 Inch Brass Pneumatic Coupler","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe COILHOSE PNEUMATICS 581A is a brass pneumatic hose coupler designed for compressed air and pneumatic tool connections in industrial and commercial service environments. This coupler features a 3\/8-inch male NPT threaded inlet and a 3\/8-inch body diameter, with a rated maximum working pressure of 300 psi and an operating temperature range of -40 degrees F to 250 degrees F. The Industrial Interchange design ensures broad compatibility with standard shop-air setups. Plumbers, pipefitters, and industrial maintenance technicians install this type of coupler when connecting pneumatic hose assemblies to air tools, regulators, and distribution lines.\u003c\/p\u003e\u003cp\u003eThe 581A is suited for residential shop air systems, light industrial facilities, and commercial maintenance environments where Industrial Interchange-style quick-connect fittings are the shop standard. Its brass construction resists corrosion and holds up under repeated connect-disconnect cycles. The threaded NPT connection allows for a secure, leak-resistant joint when properly applied with thread sealant. Typical applications include air compressor outlet connections, pneumatic tool drops, and inline hose assembly terminations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3\/8-inch MNPT threaded connection for secure, leak-resistant installation\u003c\/li\u003e\n\u003cli\u003e3\/8-inch body diameter in Industrial Interchange configuration\u003c\/li\u003e\n\u003cli\u003eRated to 300 psi maximum working pressure\u003c\/li\u003e\n\u003cli\u003eOperating range of -40 degrees F to 250 degrees F for broad service conditions\u003c\/li\u003e\n\u003cli\u003eBrass body construction for corrosion resistance and durability\u003c\/li\u003e\n\u003cli\u003eIndustrial Interchange design compatible with standard shop-air quick-connect systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or new-installation coupler for pneumatic hose systems using Industrial Interchange style quick-connect fittings with 3\/8-inch NPT threaded connections.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation of pneumatic hose couplers should be performed by a qualified technician following the compressed air system manufacturer guidelines. Depressurize and isolate the air line completely before removing or installing any coupler. Apply an appropriate thread sealant or PTFE tape to the male NPT threads before torquing into the mating fitting. Verify all connections are leak-free before returning the system to service.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoupling Type\u003c\/strong\u003e: Coupler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange Type\u003c\/strong\u003e: Industrial Interchange\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: MNPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Diameter\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e: 300 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Temperature\u003c\/strong\u003e: 250 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Temperature\u003c\/strong\u003e: -40 degrees F\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: COILHOSE PNEUMATICS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 581A\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"COILHOSE PNEUMATICS","offers":[{"title":"Default Title","offer_id":51564158484786,"sku":"581A","price":60.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cdec0150549d15252648794f024fa23e.jpg?v=1786512721","url":"https:\/\/voomisupply.com\/products\/coilhose-pneumatics-581a-3-8-inch-brass-pneumatic-coupler","provider":"Voomi Supply","version":"1.0","type":"link"}