{"product_id":"castair-jic-fitting-adapter-a12-x-38bspp-jica12x38bspp","title":"Castair JIC Fitting Adapter A12 x 38BSPP - JICA12X38BSPP","description":"\u003cp\u003eThe Castair JICA12X38BSPP is a cross-standard adapter fitting — JIC-12 (1-1\/16-12 UNF, 37-degree flare) on one end and 3\/8-inch BSPP (British Standard Pipe Parallel) on the other. This adapter is specifically for installations that need to connect American-standard JIC-12 air line hardware to equipment or components with metric BSPP ports — common in imported compressors, European air tools, and industrial equipment manufactured to ISO\/BSP thread standards.\u003c\/p\u003e\n\n\u003cp\u003eBSPP (British Standard Pipe Parallel, also known as G-thread) is a parallel thread fitting that seals with a bonded seal washer or O-ring face seal at the port face — not by thread taper. This is different from NPT, which seals on the thread taper. If your equipment has metric ports and you're integrating it into a JIC-12 compressed air system, the JICA12X38BSPP eliminates the need for thread adapters in between.\u003c\/p\u003e\n\n\u003ch2\u003eJIC to BSPP — When You Need This Adapter\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eImported air equipment:\u003c\/strong\u003e European and Asian-manufactured compressors, air dryers, filters, and regulators frequently use BSPP threads at their service ports — specifically 3\/8\" BSPP (G 3\/8\") for medium-flow connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixed piping systems:\u003c\/strong\u003e If your shop has a mix of American and imported equipment on a shared air system, cross-standard adapters like this eliminate the need for multiple adapters in series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAftercooler or filter connections:\u003c\/strong\u003e Many imported after-treatment components use BSPP ports and need an adapter to connect to JIC air lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout JIC Fittings in Compressed Air Systems\u003c\/h2\u003e\n\u003cp\u003eJIC (Joint Industry Council) fittings use a 37-degree flare seating surface. This seating angle creates a metal-to-metal seal that is leak-resistant under pressure and does not require sealant tape or thread compound on the flare seating surface (though thread sealant is still appropriate on the straight threads in certain configurations). JIC fittings are widely used in hydraulic systems and increasingly in compressed air distribution where secure, serviceable connections are needed at equipment connections, regulator ports, and manifold tees.\u003c\/p\u003e\n\u003cp\u003eThe dash number in JIC sizing corresponds to the tubing OD in 1\/16-inch increments: JIC-10 fits 5\/8-inch OD tubing (7\/8-14 UNF thread), JIC-12 fits 3\/4-inch OD tubing (1-1\/16-12 UNF thread).\u003c\/p\u003e\n\n\u003ch2\u003eBSPP Thread Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBSPP (G-thread) is parallel, not tapered:\u003c\/strong\u003e Unlike NPT, BSPP threads do not seal on the thread — the port face seals against an O-ring or bonded seal washer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo not use PTFE tape on the BSPP end:\u003c\/strong\u003e BSPP seals at the face. Use a copper or aluminum washer, or the O-ring supplied with the BSPP port if applicable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\/8\" BSPP (G 3\/8\"):\u003c\/strong\u003e This is a common port size on European compressors and filter\/regulator units for medium air flows\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm thread type:\u003c\/strong\u003e BSPP and BSPT (tapered) look identical — BSPT tapers slightly along the thread length. Confirm your equipment has BSPP (parallel) ports before using this adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitting Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e JICA12X38BSPP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection 1:\u003c\/strong\u003e JIC-12 (1-1\/16-12 UNF, 37-degree flare, 3\/4-inch OD tubing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection 2:\u003c\/strong\u003e 3\/8-inch BSPP (G 3\/8\", parallel thread, face seal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeating (JIC end):\u003c\/strong\u003e 37-degree flare metal-to-metal seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeating (BSPP end):\u003c\/strong\u003e O-ring or bonded seal at port face\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air Distribution Piping \/ JIC Fittings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eJIC-12 end: no sealant on the 37-degree flare seat. Torque to seat the flare\u003c\/li\u003e\n\u003cli\u003eBSPP end: use an O-ring or copper sealing washer as required by the mating port. No PTFE tape on the thread\u003c\/li\u003e\n\u003cli\u003eVerify your equipment port is BSPP (parallel) before ordering — using a parallel-thread fitting in a tapered port or vice versa will leak\u003c\/li\u003e\n\u003cli\u003eLeak-check both connections after pressurizing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e JICA12X38BSPP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection 1:\u003c\/strong\u003e JIC-12 — 1-1\/16-12 UNF, 37-degree flare, 3\/4-inch OD tubing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection 2:\u003c\/strong\u003e 3\/8-inch BSPP (G 3\/8\") parallel thread, face seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Cross-standard connection between American JIC-12 air lines and metric BSPP-ported equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h3\u003e\n\u003cp\u003eWe stock Castair air distribution fittings and accessories. If you're planning or expanding your shop's compressed air piping system, we can help you spec the right fitting combinations for your line sizes and equipment. Free shipping on qualifying orders. Call 866-217-0063 for help selecting the right fittings for your installation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCall 866-217-0063 for quick answers and help!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Cast Air","offers":[{"title":"Default Title","offer_id":53342570053845,"sku":"JICA12X38BSPP","price":29.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/JICA12X38BSPP_20PG30.jpg?v=1772675199","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-jic-fitting-adapter-a12-x-38bspp-jica12x38bspp","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}