{"product_id":"thomas-betts-8421-threadless-connector-nsb-conduit-fittings","title":"Thomas \u0026 Betts 8421 Threadless Connector NSB Conduit Fittings","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\" class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription:\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"18\" data-end=\"643\"\u003eThe Thomas \u0026amp; Betts 8421 Threadless Connector NSB is used to connect and effectively bond 1-1\/4 inch rigid metal conduit (RMC) or intermediate metal conduit (IMC) to electrical boxes and enclosures without threading the conduit. Commonly installed in industrial facilities, commercial buildings, manufacturing plants, and utility electrical systems, this conduit fitting provides a secure mechanical connection and reliable grounding continuity. Maintenance teams and electrical contractors use this fitting for repair, retrofit, expansion, and replacement of rigid conduit installations. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"645\" data-end=\"662\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"664\" data-end=\"1199\"\u003eThe Thomas \u0026amp; Betts 8421 is designed for terminating or coupling threadless rigid metal conduit and IMC in electrical distribution systems. Its malleable iron construction and split steel ring with diagonal serrations provide a permanent, concrete-tight connection while ensuring positive grounding. The fitting is suitable for switchgear, motor control centers, electrical panels, industrial machinery, and commercial electrical installations where threadless conduit connections are required. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1201\" data-end=\"1230\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1232\" data-end=\"2366\"\u003e• Manufacturer Part Number (MPN): 8421\u003cbr data-start=\"1270\" data-end=\"1273\"\u003e• Brand: Thomas \u0026amp; Betts (ABB) – T\u0026amp;B Rigid Fittings\u003cbr data-start=\"1323\" data-end=\"1326\"\u003e• Product Type: Threadless Connector\u003cbr data-start=\"1362\" data-end=\"1365\"\u003e• Trade Size: 1-1\/4 in.\u003cbr data-start=\"1388\" data-end=\"1391\"\u003e• Conduit Type: Rigid Metal Conduit (RMC) \/ Intermediate Metal Conduit (IMC)\u003cbr data-start=\"1467\" data-end=\"1470\"\u003e• Connection Type: Threadless\u003cbr data-start=\"1499\" data-end=\"1502\"\u003e• Throat Type: Non-Insulated\u003cbr data-start=\"1530\" data-end=\"1533\"\u003e• Material: Malleable Iron Body with Case-Hardened Steel Ring and Steel Locknut\u003cbr data-start=\"1612\" data-end=\"1615\"\u003e• Finish: Electro Zinc-Plated Chromate Coating\u003cbr data-start=\"1661\" data-end=\"1664\"\u003e• Diameter: 2-3\/8 in.\u003cbr data-start=\"1685\" data-end=\"1688\"\u003e• Length: 2-7\/16 in.\u003cbr data-start=\"1708\" data-end=\"1711\"\u003e• Thread Length: 11\/16 in.\u003cbr data-start=\"1737\" data-end=\"1740\"\u003e• Construction: Concrete-Tight\u003cbr data-start=\"1770\" data-end=\"1773\"\u003e• Application: Connects and bonds threadless RMC\/IMC conduit to boxes, enclosures, or couples threadless conduit sections\u003cbr data-start=\"1894\" data-end=\"1897\"\u003e• Standards: UL 514B (UL File E23018), CSA C22.2, NEMA, Federal Specification WF-408, NFPA 70\u003cbr data-start=\"1990\" data-end=\"1993\"\u003e• Compliance: RoHS 3 Compliant, REACH Compliant, TSCA Section 6(h) Compliant\u003cbr data-start=\"2069\" data-end=\"2072\"\u003e• UPC: 786210084213\u003cbr data-start=\"2091\" data-end=\"2094\"\u003e• Features: Split steel ring with diagonal serrations for positive grounding, permanent mechanical connection, eliminates conduit threading, corrosion-resistant construction, and suitable for industrial and commercial conduit systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2368\" data-end=\"2392\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2394\" data-end=\"2501\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Thomas \u0026amp; Betts 8321\u003cbr data-start=\"2415\" data-end=\"2418\"\u003e• Thomas \u0026amp; Betts 8521\u003cbr data-start=\"2439\" data-end=\"2442\"\u003e• Thomas \u0026amp; Betts 8423\u003c\/p\u003e","brand":"Thomas","offers":[{"title":"New","offer_id":51714001600814,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_e4c60837-6c45-4d79-8a4c-7fddbaecc2e9.jpg?v=1770413432","url":"https:\/\/plgautomation.com\/products\/thomas-betts-8421-threadless-connector-nsb-conduit-fittings","provider":"PLG Automation ","version":"1.0","type":"link"}