National Marker N139873 Removable Pin Broad Hinge

Product Description

The NATIONAL MARKER N139873 is a 3.5-inch removable pin broad hinge built for general utility and industrial applications. Constructed from galvanized steel with a brass pin, it provides corrosion resistance suitable for demanding service environments. The swaged design is intended for mortise installations, allowing a clean, recessed fit in door frames and casework. The loose pin configuration lets doors be removed without uninstalling the hinge leaves, which saves time during service, maintenance, and equipment access work. Installation trades including carpenters, millwrights, and industrial maintenance technicians will encounter this hinge across a wide range of commercial and industrial door applications.

This hinge is suited for residential utility and industrial settings where frequent door removal is required or anticipated. The mortise-ready swaged leaves seat flush into prepared cutouts. The galvanized steel construction resists rust in moderately wet or high-humidity environments such as mechanical rooms, storage facilities, and light industrial spaces. Note that fasteners are not included with this item.

Key Features

• Removable brass pin allows door removal without uninstalling hinge leaves
• Swaged leaves designed for mortise installation for a flush, recessed fit
• Galvanized steel construction for corrosion resistance in utility and industrial environments
• 3.5-inch hinge size suitable for standard utility and light industrial doors
• Sold individually with no fasteners included

Compatibility

Designed as an OEM-style replacement and general-use broad hinge for mortise door applications in utility and industrial settings. Corresponds to National catalog model series V504 through V504BC.

Installation Notes

Installation is typically performed by carpenters, millwrights, or industrial maintenance technicians. Power down any electrically operated door hardware before beginning work. Mortise preparation should match the hinge leaf dimensions to ensure a flush fit. Fasteners are not supplied with this hinge and must be sourced separately appropriate to the door material and load requirements.

Technical Specifications

• Hinge Size: 3.5 inches
• Material: Galvanized steel with brass pin
• Pin Type: Removable loose pin
• Installation Type: Mortise (swaged leaves)
• Weight: 0.512 pounds
• Fasteners Included: No
• UPC: 00038613139879

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N139873