{"product_id":"bell-gossett-52-128-642-002-series-ehsc-hsc-s-shaft-nut","title":"Bell \u0026 Gossett 52-128-642-002 Series eHSC\/HSC-S Shaft Nut","description":"\u003cp\u003eThis precision-engineered shaft nut is designed to provide secure, reliable retention within the rotating assembly of your Bell \u0026amp; Gossett pumping system. The \u003cstrong\u003e52-128-642-002\u003c\/strong\u003e serves as an essential component for the \u003cstrong\u003eSeries eHSC\/HSC-S\u003c\/strong\u003e line, ensuring the integrity of the shaft assembly during high-demand operation.\u003c\/p\u003e\u003cp\u003eThe Bell \u0026amp; Gossett e-HSC pump architecture utilizes internally self-flushing mechanical seals to maximize system longevity. By maintaining proper torque and alignment with this shaft nut, you support the pump's ability to dissipate heat and manage debris without the need for vulnerable external flush lines or clogging filter kits.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Fit:\u003c\/strong\u003e Engineered to exact OEM tolerances for a secure hold on the shaft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Constructed to withstand the mechanical stresses of high-capacity hydronic applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance Ease:\u003c\/strong\u003e Simplifies the reassembly process during routine mechanical seal or bearing maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Longevity:\u003c\/strong\u003e Helps protect the rotating assembly from vibration and misalignment issues.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Primarily used in commercial HVAC, building automation, and high-flow hydronic pumping stations utilizing the Bell \u0026amp; Gossett Series eHSC or HSC-S split-case pump models.\u003c\/p\u003e","brand":"Bell \u0026 Gossett","offers":[{"title":"Default Title","offer_id":43131276460126,"sku":"52-128-642-002","price":3305.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/52_128_642_002_image_bf0cf8f4-7337-40eb-a33e-094c220afcc2.jpg?v=1786092628","url":"https:\/\/nationalboilersupply.com\/products\/bell-gossett-52-128-642-002-series-ehsc-hsc-s-shaft-nut","provider":"National Boiler Supply","version":"1.0","type":"link"}