{"product_id":"brass-captive-sleeve-nut-compression-fitting","title":"Brass Captive Sleeve Nut for Compression Fittings","description":"\u003cp\u003eThe brass captive sleeve nut is the clamping half of a captive-sleeve compression fitting. The sleeve (ferrule) is held captive inside the nut, so it can't cock or fall out during assembly — you thread the nut onto the fitting body, and as it tightens the captive sleeve grips and seals the tube in one motion. Sized by tube outside diameter for copper, aluminum, and thermoplastic tubing in pneumatic and hydraulic lines.\u003c\/p\u003e\n\u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eType: Captive sleeve compression nut (sleeve held captive in the nut)\u003c\/li\u003e\n\u003cli\u003eMaterial: Brass\u003c\/li\u003e\n\u003cli\u003eSizing: By tube outside diameter (OD)\u003c\/li\u003e\n\u003cli\u003eAvailable tube sizes: 1\/8\", 3\/16\", 1\/4\", 5\/16\", 3\/8\", 1\/2\", 5\/8\"\u003c\/li\u003e\n\u003cli\u003eCompatible tubing: Copper, aluminum, and thermoplastic\u003c\/li\u003e\n\u003cli\u003eDesign benefit: Captive sleeve prevents sleeve cocking and misalignment for a more reliable, leak-resistant seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical applications\u003c\/h3\u003e\n\u003cp\u003eAir compressor plumbing, pneumatic control lines, instrumentation, and hydraulic connections where a fast, reusable, leak-resistant tube connection is needed. The captive-sleeve design speeds installation and reduces the chance of a mis-seated ferrule compared with loose-sleeve compression fittings.\u003c\/p\u003e\n\u003cp\u003eChoose the brass captive sleeve nut that matches your tubing OD. Brass construction resists corrosion for long service in shop and industrial air and fluid systems.\u003c\/p\u003e","brand":"Warthog Air Compressor Store","offers":[{"title":"1\/8\"","offer_id":54367598313747,"sku":"CSN-001","price":3.0,"currency_code":"USD","in_stock":true},{"title":"3\/16\"","offer_id":54367598346515,"sku":"CSN-002","price":2.0,"currency_code":"USD","in_stock":true},{"title":"1\/4\"","offer_id":54367598379283,"sku":"CSN-003","price":2.0,"currency_code":"USD","in_stock":true},{"title":"5\/16\"","offer_id":54367598412051,"sku":"CSN-004","price":3.0,"currency_code":"USD","in_stock":true},{"title":"3\/8\"","offer_id":54367598444819,"sku":"CSN-005","price":2.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\"","offer_id":54367598477587,"sku":"CSN-007","price":6.0,"currency_code":"USD","in_stock":true},{"title":"5\/8\"","offer_id":54367598510355,"sku":"CSN-008","price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0825\/3141\/8387\/files\/brass-compression-captive-sleeve-nuts-tube-fittings-350-detail__94306.1744909552.386.513.jpg?v=1782922893","url":"https:\/\/aircompressorstore.com\/products\/brass-captive-sleeve-nut-compression-fitting","provider":"Warthog Air Compressor Store","version":"1.0","type":"link"}