{"product_id":"413-buna-n-o-rings-70a-durometer-oil-resistant-seal-for-rv-engine-6-pcs","title":"413 Buna-N O-Rings,70A Durometer,Oil Resistant Seal for RV \u0026 Engine 6 PCS","description":"\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePRECISION FIT FOR LEAK-FREE SEALING - Each 413 o-ring meets AS568 aerospace standards with actual dimensions of 2.975\" ID, 3.525\" OD, and 0.275\" cross-section. The round profile creates a tight seal between cylindrical surfaces, making it ideal for replacing worn gaskets on RV plumbing vents, engine throttle bodies, hydraulic machinery, industrial flanges and pump housing seals.\u003c\/li\u003e\n\u003cli\u003eOIL \u0026amp; ABRASION RESISTANT BUNA-N MATERIAL - Made from buna-nitrile (buna-n) rubber with 70A durometer hardness, these nitrile o-rings withstand hydrocarbons, oils, fuels, and hydraulic fluids without swelling or degrading. Perfect for automotive engine gaskets, fuel system seals, oil line connections and farm machinery hydraulic parts where chemical resistance matters.\u003c\/li\u003e\n\u003cli\u003eEXTREME TEMPERATURE VERSATILITY - Reliable performance from -30°F (-34°C) to 250°F (121°C), covering both cold-weather RV storage and hot-running machinery. Whether sealing hot engine oil in a Chevy 350 V8 or cold water lines in a camper van, these o-rings maintain their shape and sealing pressure across temperature swings, even in freezing outdoor environments.\u003c\/li\u003e\n\u003cli\u003eCOMPRESSION SET RESISTANCE FOR LONG SERVICE LIFE - Unlike lower-quality rubber seals that flatten and leak over time, our 413 buna-n o-rings are formulated for excellent compression set resistance, tear resistance, and tensile strength. This means fewer replacements and reliable sealing for outdoor plumbing, air compressors, pool equipment and covered outdoor areas like porches or equipment sheds. Not suitable for areas with long-term direct sunlight.\u003c\/li\u003e\n\u003cli\u003eCONVENIENT 6-PACK FOR MULTIPLE REPAIRS - Each pack contains six precision-sized 413 o-rings, enough to complete a full RV vent replacement or stock your toolbox for future repairs. Actual dimensions provided for verification - simply match your existing 3 inch o-ring and replace with confidence. No special tools required for installation, suitable for DIY maintenance and professional repair teams - backed by actual AS568 compliance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eStop leaks before they start. Whether you're winterizing your RV, rebuilding an engine, or fixing a dripping faucet, a worn-out o-ring is often the hidden culprit. One tiny crack in the rubber can lead to fluid loss, pressure drops, and costly damage.That's where our 413 Buna-N O-Ring Set comes in. Designed as a direct replacement for AS568A dash 413 seals, this buna-n rubber o-ring offers the perfect balance of elasticity, oil resistance, and durability. The 70A durometer hardness provides enough rigidity to hold shape under pressure, while remaining flexible enough for easy installation.For RV \u0026amp; Camper Owners: Replace seals on plumbing vents, fresh water tank connections, and propane system fittings - use only for low-pressure propane applications. It performs well in sheltered outdoor storage, and the wide temperature range handles both freezing winter nights and hot summer roads.For Mechanics \u0026amp; DIYers: Drop-in replacement for Chevy 350 V8 engine seals, transmission cooler lines, and hydraulic system gaskets. The oil resistant buna-n formulation means no swelling or degradation when exposed to motor oil, transmission fluid, or power steering fluid.For Home Repairs: Perfect for f\u003c\/p\u003e\u003cp\u003eFree shipping included. 30-day hassle-free returns.\u003c\/p\u003e","brand":"Belmont Warehouse","offers":[{"title":"Default Title","offer_id":43357703241937,"sku":"BW-B0H5J97B8J","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/3123\/5793\/files\/61jtSNEZpfL._SL1500.jpg?v=1790985798","url":"https:\/\/belmontwarehouse.com\/products\/413-buna-n-o-rings-70a-durometer-oil-resistant-seal-for-rv-engine-6-pcs","provider":"Belmont Warehouse","version":"1.0","type":"link"}