Description
The NATIONAL MFG/SPECTRUM BRANDS HHI N139-733 is a 2.5-inch plain steel removable pin broad hinge designed for full mortise door installations. Manufactured from cold rolled steel, it features a five-knuckle construction and a swaged profile sized for mortise cutouts. The loose pin design allows doors to be lifted free of the frame without uninstalling the hinge leaves, making it practical for high-traffic or service access applications. Each unit ships boxed loose and is sold in a package quantity of 10. Carpenters, finish contractors, and general contractors are the primary installers.
This hinge is suited for residential and light commercial interior door applications where a full mortise installation is specified. The swaged design ensures a flush fit within the mortise pocket on both the door edge and the jamb. The removable pin feature is particularly useful in situations where doors need to be pulled for finishing, painting, or periodic maintenance without disturbing the hinge hardware already set in the frame.
Key Features
- Loose pin allows door removal without uninstalling hinge leaves
- Full mortise, five-knuckle design for flush door and jamb seating
- Swaged construction sized for standard mortise pocket installations
- Cold rolled steel construction for consistent forming and surface finish
- Sold in a package quantity of 10 units
Compatibility
Designed as an OEM-style replacement or new-installation broad hinge for full mortise door applications requiring a 2.5-inch removable pin hinge.
Installation Notes
Installation is typically performed by carpenters or finish contractors using a chisel and router to prepare the mortise pocket. Power down any electric strike or access control hardware on the door circuit before beginning work. Ensure the mortise depth matches the hinge leaf thickness so the installed hinge sits flush with the door edge and jamb face. Follow applicable local building codes for door hardware specifications in commercial occupancies.
Technical Specifications
- Hinge Width: 2.5 inches
- Material: Cold Rolled Steel
- Finish: Plain Steel
- Knuckle Count: Five
- Pin Type: Removable Loose Pin
- Installation Type: Full Mortise
- Package Quantity: 10
- Weight: 1.8 pounds
Standard Information
- Brand: NATIONAL MFG/SPECTRUM BRANDS HHI
- Manufacturer Part Number: N139-733
