{"product_id":"tube-nut-n0318-316-stainless","title":"Tube Nut — N0318 Series, 316 Stainless Steel","description":"\u003cp\u003eFlareless twin-ferrule instrumentation fittings in 316 stainless, for instrument, sample and small-bore process tube lines.\u003c\/p\u003e\u003cp\u003eTube Nut in 316 stainless steel, N0318 series. 5 sizes stocked, 1-5\/16-12\" through 9\/16-18\". Select the size you need from the dropdown — each option is a separate stocked part number.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eTwin-ferrule fittings are not cross-compatible between brands.\u003c\/strong\u003e Nuts and ferrules from one manufacturer are designed to seal against that manufacturer’s bodies. Mixing them with Swagelok, Parker A-LOK or other makes will compromise the seal even where the threads engage, so keep a single brand through any one joint.\u003c\/p\u003e\u003cp\u003eCorrect make-up matters: these need proper initial pull-up and, on remakes, a gap-inspection gauge. They also require tube of the correct wall thickness and hardness — they will not seal reliably on thin-wall or work-hardened tube.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 316 stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Tube Nut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e N0318\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct line:\u003c\/strong\u003e Instrumentation Tube Fittings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize range:\u003c\/strong\u003e 1-5\/16-12\" through 9\/16-18\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStocked part numbers:\u003c\/strong\u003e 5\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePart numbers \u0026amp; sizes\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eSize \/ Configuration\u003c\/th\u003e\n\u003cth\u003ePack quantities\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSSC31812\u003c\/td\u003e\n\u003ctd\u003e1-1\/16-12\" Flareless Tube\u003c\/td\u003e\n\u003ctd\u003eBox 100; Case 200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSSC31816\u003c\/td\u003e\n\u003ctd\u003e1-5\/16-12\" Flareless Tube\u003c\/td\u003e\n\u003ctd\u003eBox 50; Case 100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSSC3184\u003c\/td\u003e\n\u003ctd\u003e7\/16-20\" Flareless Tube\u003c\/td\u003e\n\u003ctd\u003eBox 700; Case 1400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSSC3186\u003c\/td\u003e\n\u003ctd\u003e9\/16-18\" Flareless Tube\u003c\/td\u003e\n\u003ctd\u003eBox 400; Case 800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSSC3188\u003c\/td\u003e\n\u003ctd\u003e3\/4-16\" Flareless Tube\u003c\/td\u003e\n\u003ctd\u003eBox 200; Case 400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cem\u003eShips from SupplyTie Fittings \u0026amp; Hydraulics. Free freight on orders of $2,000 or more. $75 minimum order per shipment from this location — the cart will tell you if you are short.\u003c\/em\u003e\u003c\/p\u003e","brand":"SupplyTie Fittings \u0026 Hydraulics","offers":[{"title":"1-1\/16-12\" Flareless Tube","offer_id":49163327963355,"sku":"SSC31812","price":16.97,"currency_code":"USD","in_stock":true},{"title":"1-5\/16-12\" Flareless Tube","offer_id":49163327996123,"sku":"SSC31816","price":12.81,"currency_code":"USD","in_stock":true},{"title":"7\/16-20\" Flareless Tube","offer_id":49163328028891,"sku":"SSC3184","price":4.48,"currency_code":"USD","in_stock":true},{"title":"9\/16-18\" Flareless Tube","offer_id":49163328061659,"sku":"SSC3186","price":6.25,"currency_code":"USD","in_stock":true},{"title":"3\/4-16\" Flareless Tube","offer_id":49163328094427,"sku":"SSC3188","price":10.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0723\/8477\/4363\/files\/stfh-ssc31812.jpg?v=1787258786","url":"https:\/\/www.supplytie.com\/products\/tube-nut-n0318-316-stainless","provider":"Supply Tie","version":"1.0","type":"link"}