{"product_id":"merit-brass-k619-06-pipe-locknut-3-8-in-316-ss-150-psi","title":"Merit Brass K619-06 Pipe Locknut 3\/8 in 316 Ss 150 Psi","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe MERIT BRASS K619-06 is a 3\/8 inch pipe locknut manufactured from 316 stainless steel for use in threaded piping systems requiring corrosion resistance and reliable mechanical retention. The locknut features a Female National Pipe Straight Locknut (FNPSL) end connection and is rated to 150 psi, making it suitable for moderate-pressure fluid and gas service lines. At approximately 1-1\/64 inches in length and weighing just 0.05 pounds, this is a compact, high-integrity fitting appropriate for plumbing, instrumentation, and process piping applications. Installation is performed by licensed plumbers or pipefitters working with stainless threaded systems.\u003c\/p\u003e\u003cp\u003eThis locknut is used to secure fittings, valves, and instrumentation ports in threaded pipe assemblies where stainless steel is required for corrosion resistance or sanitary compliance. Typical applications include chemical processing lines, marine plumbing, food-grade piping, and potable water systems where carbon steel fittings are not acceptable. The FNPSL connection type is designed for straight-thread locknut engagement. This fitting ships individually and is sold in a minimum quantity of one unit.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e316 stainless steel construction for superior corrosion resistance in wet and chemical environments\u003c\/li\u003e\n\u003cli\u003eFNPSL (Female National Pipe Straight Locknut) thread form for secure panel or bulkhead mounting\u003c\/li\u003e\n\u003cli\u003e150 psi pressure rating suitable for moderate-pressure service\u003c\/li\u003e\n\u003cli\u003eConforms to ISO standards for dimensional and performance consistency\u003c\/li\u003e\n\u003cli\u003eCompact form factor at 1-1\/64 inches in length and 0.05 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or new-install component for 3\/8 inch threaded pipe systems requiring an FNPSL locknut in 316 stainless steel.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed plumber or pipefitter familiar with threaded stainless steel fittings. Shut off and depressurize the system before removing or installing any fitting. Use appropriate thread sealant or tape as required by local plumbing codes and ISO standards. Avoid over-tightening, which can distort the locknut or damage the mating thread.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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: 3\/8 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: 1-1\/64 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 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\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: K619-06\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MERIT BRASS","offers":[{"title":"Default Title","offer_id":51544568987954,"sku":"K619-06","price":15.17,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/343f24b4f19daff2abda4ce8af94bd7b_b6c19291-e700-4cd6-adf5-f79da683aa69.jpg?v=1785930208","url":"https:\/\/voomisupply.com\/products\/merit-brass-k619-06-pipe-locknut-3-8-in-316-ss-150-psi","provider":"Voomi Supply","version":"1.0","type":"link"}