{"product_id":"bell-gossett-52-128-684-001-series-ehsc-hsc-s-shaft-nut","title":"Bell \u0026 Gossett 52-128-684-001 Series eHSC\/HSC-S Shaft Nut","description":"\u003cp\u003eMaintain the structural integrity of your pumping system with the genuine \u003cstrong\u003e52-128-684-001\u003c\/strong\u003e shaft nut, precision-engineered for use with the Bell \u0026amp; Gossett \u003cstrong\u003eSeries eHSC\/HSC-S\u003c\/strong\u003e pump line. This essential fastener ensures the impeller remains securely positioned on the shaft, preventing slippage or mechanical misalignment during high-demand operation.\u003c\/p\u003e\u003cp\u003eThis component is a critical part of the assembly that complements the pump's advanced internally self-flushing mechanical seal design. By securing the internal components tightly, the shaft nut helps facilitate the efficient heat dissipation and lubrication flow that make these pumps an industry standard for reliability, eliminating the need for external flush lines.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Fitment:\u003c\/strong\u003e Engineered for precise tolerance, ensuring minimal vibration during high-speed rotation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion Resistance:\u003c\/strong\u003e Manufactured from premium materials compatible with hydronic fluid environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Specification:\u003c\/strong\u003e Maintains factory-set standards for pump assembly and mechanical seal alignment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Primarily utilized in commercial HVAC chilled and hot water loops, industrial process cooling, and large-scale pressure boosting systems requiring the eHSC\/HSC-S pump configuration.\u003c\/p\u003e","brand":"Bell \u0026 Gossett","offers":[{"title":"Default Title","offer_id":43131410743390,"sku":"52-128-684-001","price":400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/52_128_684_001_image_d8a7a2bf-f129-48ff-89e1-ee15bd09cf0b.jpg?v=1786092851","url":"https:\/\/nationalboilersupply.com\/products\/bell-gossett-52-128-684-001-series-ehsc-hsc-s-shaft-nut","provider":"National Boiler Supply","version":"1.0","type":"link"}