{"product_id":"bell-gossett-52-122-981-001-series-ehsc-hsc-s-impeller-nut","title":"Bell \u0026 Gossett 52-122-981-001 Series eHSC\/HSC-S Impeller Nut","description":"\u003cp\u003eSecure your pump's internal assembly with the genuine \u003cstrong\u003e52-122-981-001\u003c\/strong\u003e Impeller Nut, specifically engineered for the Bell \u0026amp; Gossett \u003cstrong\u003eSeries eHSC\/HSC-S\u003c\/strong\u003e line. This critical fastening component ensures the impeller remains perfectly aligned and firmly seated on the shaft, preventing vibration and premature wear during high-velocity hydronic operations.\u003c\/p\u003e\u003cp\u003eAs part of the eHSC pump series, this nut supports an architecture defined by internally self-flushing mechanical seals. By maintaining a precise torque-to-impeller connection, this hardware facilitates optimal heat dissipation and seal lubrication, helping the pump bypass the need for external flush lines or problematic filter kits that commonly lead to system failure.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Engineering:\u003c\/strong\u003e Manufactured to exact OEM tolerances for a vibration-free fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Longevity:\u003c\/strong\u003e Built to withstand high-torque hydronic cycling and fluid pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembly Integrity:\u003c\/strong\u003e Ensures stable seating of the impeller for efficient fluid transfer.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Recommended for industrial HVAC systems, commercial chilled water loops, and large-scale building hydronic circulators utilizing the Bell \u0026amp; Gossett eHSC pump platform.\u003c\/p\u003e","brand":"Bell \u0026 Gossett","offers":[{"title":"Default Title","offer_id":43130569424990,"sku":"52-122-981-001","price":638.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/52_122_981_001_image_6fdbbf1a-6278-46c7-bab7-f430dc754b89.jpg?v=1786091242","url":"https:\/\/nationalboilersupply.com\/products\/bell-gossett-52-122-981-001-series-ehsc-hsc-s-impeller-nut","provider":"National Boiler Supply","version":"1.0","type":"link"}