{"product_id":"14-x-18-p-in-x-mip-dot-adpt-680402","title":"1\/4 in. x 1\/8 in. Push-In x Male NPT DOT Adapter","description":"\u003cdiv class=\"series-sizes\"\u003e\n\u003ch3\u003eSizes in This Series\u003c\/h3\u003e\n\u003cp\u003eBrass DOT push-in to male NPT straight adapters. Jump to another size or add it straight to your cart:\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ePart #\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eCart\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca style=\"color:#FE8C03\" href=\"\/products\/532-x-18-p-in-x-mip-dot-adp-685322\"\u003e5\/32 in. x 1\/8 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e685322\u003c\/td\u003e\n\u003ctd\u003e$7.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca style=\"color:#FE8C03\" href=\"\/cart\/48646800212183:1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1\/4 in. x 1\/8 in. (this page)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e680402\u003c\/td\u003e\n\u003ctd\u003e$4.51\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-description\"\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe Midland 680402 is a forged brass D.O.T. adapter that joins 1\/4 in. push-in air brake tubing to a 1\/8 in. male NPT port. It seats the tube in one push and locks it against vibration and pressure cycling, making it a fast field connection for commercial-vehicle air systems. Built to FMVSS 571.106 and SAE J1131.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer Part #\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e680402\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTube Size (Push-In)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\/8 in. Male NPT (1\/8 - 27)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePush-to-Connect x Male NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePressure Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e150 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°F to 200°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDOT \/ SAE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFMVSS 571.106, SAE J1131\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eMaterials of Construction\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBody\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCollet \/ Grip Ring\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStainless steel gripper with O-ring seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cp\u003eConnects 1\/4 in. DOT air brake tubing to threaded ports on valves, gladhands, and reservoirs across truck, trailer, and bus air brake systems. Also serves pneumatic control and instrumentation air lines where a tool-free, DOT-rated connection is needed.\u003c\/p\u003e\n\u003ch3\u003eCross-Reference and Interchange\u003c\/h3\u003e\n\u003cp\u003eThis DOT push-in adapter cross-references to these competitor and industry part numbers: \u003cstrong\u003e1568-4-2\u003c\/strong\u003e, \u003cstrong\u003e268PC-4x2\u003c\/strong\u003e, \u003cstrong\u003e268PPDOT-4A\u003c\/strong\u003e, \u003cstrong\u003e68PMT-4-2\u003c\/strong\u003e, \u003cstrong\u003eAPTC68-4A\u003c\/strong\u003e, \u003cstrong\u003eAQ68-DOT-4X2\u003c\/strong\u003e, \u003cstrong\u003eD7068DT-4A\u003c\/strong\u003e, \u003cstrong\u003eDOT68-4-2\u003c\/strong\u003e, \u003cstrong\u003ePC1468-4A\u003c\/strong\u003e, \u003cstrong\u003ePL-1368-4A\u003c\/strong\u003e, \u003cstrong\u003ePP68C-DOT\u003c\/strong\u003e, \u003cstrong\u003eS68PMT-4-2\u003c\/strong\u003e. Replacing one of these? Match nominal size, connections, and rating, or send us your part number and we will confirm the interchange.\u003c\/p\u003e\n\u003ch3\u003eSizing and Installation Resources\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/push-to-connect-fittings-selection-guide\"\u003ePush-to-Connect Fittings Selection Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/npt-thread-tightening-turns-past-hand-tight\"\u003eNPT Thread Tightening: Turns Past Hand-Tight\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/pipe-size-reference-chart\"\u003ePipe Size Reference Chart\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/teflon-tape-vs-pipe-dope\"\u003eTeflon Tape vs. Pipe Dope\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this fitting DOT approved for air brakes?\u003c\/strong\u003e\u003cbr\u003eYes. It meets FMVSS 571.106 and SAE J1131 for commercial-vehicle air brake systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat tubing does it accept?\u003c\/strong\u003e\u003cbr\u003e1\/4 in. OD DOT-rated nylon air brake tubing. Cut the tube square and push it fully in until it bottoms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need thread sealant?\u003c\/strong\u003e\u003cbr\u003eA thin band of PTFE tape or pipe dope on the male NPT threads is recommended for a leak-free joint.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the connection be reused?\u003c\/strong\u003e\u003cbr\u003eYes. Push the collet in and pull the tube out to release, then reconnect.\u003c\/p\u003e\n\u003cp\u003eWARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48646800146647,"sku":"680402","price":4.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_680402.jpg?v=1779367944","url":"https:\/\/apexflowsolutions.com\/products\/14-x-18-p-in-x-mip-dot-adpt-680402","provider":"Apex Flow Solutions","version":"1.0","type":"link"}