{"product_id":"national-mfg-n139-873-3-5-in-steel-removable-pin-broad-hinge","title":"National Mfg N139-873 3.5 in Steel Removable Pin Broad Hinge","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NATIONAL MFG\/SPECTRUM BRANDS HHI N139-873 is a 3.5-inch plain steel removable pin broad hinge designed for full mortise door installations. Manufactured from cold rolled steel, this five-knuckle hinge features a loose pin design that allows doors to be removed from the frame without taking the hinge itself off the door or jamb. It is swaged for mortise installations, providing a flush, clean fit. Licensed contractors, carpenters, and door hardware installers use this hinge in commercial and residential framing applications where easy door removal is a routine service requirement.\u003c\/p\u003e\u003cp\u003eThis hinge is suited for mortise-style door installations in both residential and light commercial settings. The full mortise design requires a routed recess in the door edge and jamb, making it a standard choice for hollow-core and solid wood door hanging. It is packaged loose in a box and sold in a quantity of 10 units per package, making it practical for multi-door projects or maintenance stock.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLoose removable pin allows door removal without uninstalling the hinge leaves\u003c\/li\u003e\n\u003cli\u003eFull mortise design for flush, recessed installation in door edge and jamb\u003c\/li\u003e\n\u003cli\u003eSwaged knuckles ensure proper leaf alignment during mortise fitment\u003c\/li\u003e\n\u003cli\u003eFive-knuckle construction for added bearing surface and durability\u003c\/li\u003e\n\u003cli\u003eCold rolled steel construction for consistent strength and finish\u003c\/li\u003e\n\u003cli\u003ePackaged loose in box, 10 units per package\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or new-installation broad hinge for standard full mortise door applications requiring a 3.5-inch hinge with a removable pin.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by carpenters, door hardware installers, or general contractors. Mortise the hinge leaf recesses into both the door edge and the door jamb to the correct depth before fastening. Ensure all fasteners are fully seated and the pin is fully inserted before testing door swing. Follow applicable local building codes for door hardware in commercial occupancies.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHinge Size\u003c\/strong\u003e: 3.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cold Rolled Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Plain Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnuckle Count\u003c\/strong\u003e: Five Knuckle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Type\u003c\/strong\u003e: Loose Removable Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Type\u003c\/strong\u003e: Full Mortise\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 10 per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 5.24 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: NATIONAL MFG\/SPECTRUM BRANDS HHI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: N139-873\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NATIONAL HARDWARE","offers":[{"title":"Default Title","offer_id":51561528787250,"sku":"N139-873","price":53.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ff7d3622b88769bd5286fad06d45929b.jpg?v=1786465178","url":"https:\/\/voomisupply.com\/products\/national-mfg-n139-873-3-5-in-steel-removable-pin-broad-hinge","provider":"Voomi Supply","version":"1.0","type":"link"}