{"product_id":"70-duro-metric-buna-5-3x40-10-pcs-per-bag_zmush5-3x40b10","title":"Black Buna-N O-Ring | 40mm ID x 5.3mm Wide | 70 Durometer (70\/Pkg.)","description":"\u003cdiv\u003e\n\u003cp\u003eProfessional-grade O-ring seals designed for reliable, repeatable sealing in metric hydraulic and pneumatic assemblies. Buna-N (NBR) with 70 Shore A hardness provides consistent performance in a 40 millimeter inner diameter by 5.3 millimeter cross-section metric size, packed as 70 pieces in bags of 10 for efficient stocking and quick replacements.\u003c\/p\u003e \u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: Cross-section 5.3 millimeter; Inner diameter 40 millimeter\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial grade\u003c\/strong\u003e: Buna-N (NBR), 70 Shore A\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSealing material\u003c\/strong\u003e: Buna-N (NBR) formulation with 70 Shore A hardness provides reliable sealing with good compression set resistance for general-purpose applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMetric compatibility\u003c\/strong\u003e: Metric o-ring seals sized 5.3 millimeter cross-section by 40 millimeter inner diameter (CS x ID) designed for standard metric fittings and housings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePackaging\u003c\/strong\u003e: Total quantity 70 pieces; pre-cut seals packaged in bags containing 10 pieces each for straightforward stocking and quick replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUse cases\u003c\/strong\u003e: Suitable for sealing hydraulic fittings, pneumatic equipment, automotive maintenance, irrigation systems, and light-industrial uses where precise small seals are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Mutual Screw","offers":[{"title":"Default Title","offer_id":52348089827607,"sku":"ZMUSH5.3X40B10","price":32.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/Standard_Buna-N_O-Rings_fcf7b7b8-2d96-4da0-8e71-7598606bf525.webp?v=1772395074","url":"https:\/\/mutualscrew.com\/products\/70-duro-metric-buna-5-3x40-10-pcs-per-bag_zmush5-3x40b10","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}