{"product_id":"merit-brass-k619-20-pipe-locknut-1-1-4-in-316-ss","title":"Merit Brass K619-20 Pipe Locknut 1-1\/4 in 316 Ss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MERIT BRASS K619-20 is a 1-1\/4 inch pipe locknut machined from 316 stainless steel for corrosion-resistant service in plumbing and industrial piping systems. It features a female National Pipe Straight Locknut (FNPSL) threaded end connection and carries a 150 psi pressure rating. At 2-11\/64 inches in length and weighing 0.25 pounds, this locknut meets ISO standards for dimensional consistency. Licensed plumbers and pipefitters install locknuts like this to secure fittings, conduit, or pipe penetrations through panels, enclosures, and bulkheads where a tight, vibration-resistant mechanical connection is required.\u003c\/p\u003e\n\u003cp\u003eThis locknut is suited for residential and commercial plumbing, industrial process piping, and mechanical systems where corrosion resistance is a priority. The 316 stainless steel construction makes it appropriate for environments exposed to moisture, mild chemicals, or chlorides where carbon steel hardware would corrode prematurely. It is commonly used to lock fittings through tank walls, enclosure knockouts, and bulkhead assemblies in both wet and dry service conditions.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e316 stainless steel construction for superior corrosion resistance in wet and chemical environments\u003c\/li\u003e\n  \u003cli\u003eFNPSL threaded end connection for secure, vibration-resistant installation\u003c\/li\u003e\n  \u003cli\u003e150 psi pressure rating suitable for standard plumbing and process applications\u003c\/li\u003e\n  \u003cli\u003eISO-compliant dimensions for consistent fitment with standard pipe components\u003c\/li\u003e\n  \u003cli\u003eCompact at 2-11\/64 inches length and 0.25 pounds for easy handling and inventory\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation locknut for 1-1\/4 inch threaded pipe systems requiring an FNPSL connection in 316 stainless steel.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed plumbers or qualified pipefitters. Shut off system pressure and drain the line before removing or installing any threaded fitting. Hand-tighten the locknut onto the mating fitting threads before applying a wrench to avoid cross-threading. Refer to applicable IPC and ASME B1.20.1 thread engagement requirements for proper sealing practice.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Type\u003c\/strong\u003e: Locknut\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Size\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 316 Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Connection\u003c\/strong\u003e: FNPSL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Rating\u003c\/strong\u003e: 150 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 2-11\/64 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.25 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 40175300\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: MERIT BRASS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: K619-20\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MERIT BRASS","offers":[{"title":"Default Title","offer_id":51543130439986,"sku":"K619-20","price":30.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/343f24b4f19daff2abda4ce8af94bd7b_e99ce986-9847-41c3-940b-97f8850e8666.jpg?v=1785916146","url":"https:\/\/voomisupply.com\/products\/merit-brass-k619-20-pipe-locknut-1-1-4-in-316-ss","provider":"Voomi Supply","version":"1.0","type":"link"}