{"product_id":"5-pack-nbr-rubber-o-rings-cs-3-55mm-industrial-seal-gaskets","title":"5-Pack NBR Rubber O-Rings CS 3.55mm Industrial Seal Gaskets","description":"\u003ch2\u003e5-Pack NBR Rubber O-Ring Seal Gaskets – CS 3.55mm\u003c\/h2\u003e\n\u003cp\u003eKeep your machinery, plumbing, and industrial assemblies leak-free with these heavy-duty \u003cstrong\u003eNBR (Nitrile Butadiene Rubber) O-Rings\u003c\/strong\u003e. Sold in a convenient 5-piece lot, these standard ring gaskets feature a cross-section of 3.55mm and are available in a wide range of inner diameters — from 90mm up to 155mm — making them a versatile solution for a broad spectrum of industrial, mechanical, and hydraulic sealing applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Premium NBR (Nitrile Butadiene Rubber) — excellent resistance to oils, fuels, and hydraulic fluids\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCross-Section (CS):\u003c\/strong\u003e 3.55mm for a consistent, reliable seal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable Inner Diameters (ID):\u003c\/strong\u003e 90 \/ 92.5 \/ 95 \/ 97.5 \/ 100 \/ 125 \/ 132 \/ 155mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 5 pieces per lot\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Standard ring gasket \/ toroidal profile\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e Manufactured to industry-standard dimensions for easy cross-referencing and replacement\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Ideal for pumps, valves, hydraulic cylinders, pipework fittings, compressors, and general industrial machinery\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e Suitable for a wide operating temperature range typical of NBR compounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose NBR O-Rings?\u003c\/h3\u003e\n\u003cp\u003eNBR rubber is one of the most widely used elastomers in sealing technology. Its strong resistance to petroleum-based oils, greases, and hydraulic fluids makes it the go-to choice for automotive, manufacturing, and industrial sealing tasks. These O-rings form a tight, durable seal that helps prevent fluid and gas leakage in both static and dynamic applications.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOuling\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNBR Rubber\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCross-Section (CS)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.55mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInner Diameter Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e90, 92.5, 95, 97.5, 100, 125, 132, 155mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity per Pack\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShape\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRing Gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-self-tapping-screws-m2-2-m4-8-phillips-wood-hinge\"\u003e10PCS Stainless Steel Self-Tapping Screws M2.2–M4.8 Phillips\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-20mm-diamond-flat-grinding-wheel-dry-and-wet-use-heavy-duty-concrete-grinder-wheel-blue-vacuum-brazed\"\u003e10\/20mm Diamond Flat Grinding Wheel – Heavy Duty Concrete Grinder\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-durable-gold-blade-nut-metal-universal-trimmer-accessories-anti-loosening-line-left-hand-thread-replacement-parts-1\"\u003e10pcs Durable Gold Blade Nut Metal Universal Trimmer Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What sizes of inner diameters are available for these NBR O-rings?\u003c\/h4\u003e\n\u003cp\u003eA: These NBR rubber O-rings are available in the following inner diameter sizes: 90mm, 92.5mm, 95mm, 97.5mm, 100mm, 125mm, 132mm, and 155mm — all with a cross-section of 3.55mm. Select your required ID when ordering.\u003c\/p\u003e\n\u003ch4\u003eQ: What are NBR O-rings best used for?\u003c\/h4\u003e\n\u003cp\u003eA: NBR (Nitrile Butadiene Rubber) O-rings are ideal for sealing applications involving petroleum-based oils, hydraulic fluids, fuels, and greases. They are commonly used in pumps, valves, compressors, automotive systems, and general industrial machinery where a reliable, leak-proof seal is required.\u003c\/p\u003e\n\u003ch4\u003eQ: How many O-rings come in one order?\u003c\/h4\u003e\n\u003cp\u003eA: Each order includes 5 pieces (5PC\/lot) of the selected inner diameter size, giving you convenient spares for maintenance and replacements.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What sizes of inner diameters are available for these NBR O-rings?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These NBR rubber O-rings are available in the following inner diameter sizes: 90mm, 92.5mm, 95mm, 97.5mm, 100mm, 125mm, 132mm, and 155mm — all with a cross-section of 3.55mm. 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