BEST F173NRP Steel Half Surfac...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$21.93
BEST F173NRP Steel Half Surface Plain Bearing Hinge with Non-Removable Pin

BEST F173NRP Steel Half Surface Plain Bearing Hinge with Non-Removable Pin

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Model: BEST-F173NRP-652-4.5
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$21.93
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BEST F173NRP Steel Half Surface Plain Bearing Hinge with Non-Removable Pin

Professional Half Surface Hinge Solution

The BEST F173NRP is a steel half surface hinge engineered for kalamein or wood doors with hollow metal frames. This medium-duty hinge features a plain bearing mechanism for smooth operation and a non-removable pin design for convenient maintenance. The half surface design allows for easy installation as only the jamb leaf requires mortising, while maintaining a concealed appearance on the frame side.

Professional Features & Benefits

  • Half Surface Design: Easy installation with only jamb leaf mortising required, reducing preparation time and complexity.
  • Plain Bearing Operation: Smooth and quiet door movement suitable for medium-duty applications without door closers.
  • Non-Removable Pin: Convenient maintenance and adjustment capability while maintaining security.
  • Steel Construction: Durable material provides reliable performance for commercial door applications.
  • 5-Knuckle Configuration: Standard knuckle count ensures proper load distribution and operational stability.
  • Complete Hardware Package: Includes machine screws and grommet nuts for immediate installation.
  • Versatile Application: Designed specifically for low frequency kalamein or wood doors with hollow metal frames.

Technical Specifications

  • Bearing Type: Plain Bearing
  • Commercial/Residential: Commercial
  • Corner Style: Square Corners
  • Department: Door Hardware
  • Duty Level: Medium Duty
  • Hinge Pin Type: Non-Removable
  • Hinge Type: Half Surface
  • Knuckles: 5
  • Product Category: Door Hinges and Pivots
  • Product Group: Door Hinges and Pivots
  • Product Model: F173NRP
  • Product Subgroup: Surface and Mortise Hinges
  • Product Type: Half Surface Hinges
  • Series: Architectural Hinges
  • Subcategory: Hinges

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose BEST Quality?

BEST architectural hinges deliver professional-grade reliability with steel construction rated for medium-duty commercial applications. The F173NRP's plain bearing design and non-removable pin configuration provide dependable performance for low frequency door operations. Engineered for demanding commercial applications where consistent operation and easy maintenance are essential.

Product Specs

Subcategory:
Hinges
Series:
Architectural Hinges
Hinge Type:
Half Surface
Knuckles:
5
Bearing Type:
Plain Bearing
Corner Style:
Square Corners
Product Group:
Door Hinges and Pivots
Product Subgroup:
Surface and Mortise Hinges
Product Type:
Half Surface Hinges
Duty Level:
Medium Duty
Commercial/Residential:
Commercial
Hinge Pin Type:
Non-Removable
Product Model:
F173NRP
Product Category:
Door Hinges and Pivots
Department:
Door Hardware

BEST BEST-F173NRP-652-4.5 – Frequently Asked Questions

1) What is a half surface hinge, and why would I use the BEST F173NRP instead of a full mortise hinge?
A half surface hinge splits the prep: one leaf mortises into the jamb, the other surface-applies to the face of the door. The F173NRP is set up for a kalamein or wood door hung in a hollow metal frame, where the frame is already prepped or easy to prep but you would rather not rout the door. If both the door and frame are getting cut for hinges, a full mortise hinge is the normal choice, and the Hager 1191 full mortise plain bearing hinge is the 5 knuckle standard weight equivalent in that style.
2) Can I use the BEST F173NRP on a door with a closer or on a high traffic opening?
No. The F173NRP is a plain bearing, medium duty hinge intended for low frequency openings without a door closer. Plain bearings run metal on metal at the knuckle, so a closer or constant traffic wears them. For an opening with a closer or heavy use, move to a ball bearing hinge, such as the Hager BB1109 half mortise ball bearing hinge in 5 knuckle standard weight.
3) Does the non-removable pin on the BEST F173NRP mean the door can't be lifted off from the outside?
That is the point of it. The NRP pin is a non-removable design, so the pin can't be driven out to take the door down from the hinge side. That matters on any out-swinging door where the hinge barrel is exposed to the unsecured side, which is common on exterior and stairwell openings. If the door swings in and the barrel is on the secure side, a standard removable pin hinge covers the same duty.
4) Is the BEST F173NRP square corner or radius corner, and does that matter for my frame?
Square corners. On the jamb leaf that gets mortised, the corner style has to match the prep already cut in the frame. A square corner leaf will not seat cleanly in a pocket routed with a radius corner, and vice versa, so check what is in the existing frame before ordering. The surface-applied leaf sits on the door face and is not affected.
5) Does a half surface hinge like the BEST F173NRP need to be handed when I order it?
Yes. Half surface and half mortise hinges are handed, because one leaf is flat for surface mounting and the other is prepped for the mortise, so the hinge is built for a specific swing. Determine the hand of the door before ordering. Full mortise hinges, by contrast, are non-handed, which is one reason the Hager 1191 full mortise hinge is simpler to spec when the opening allows either.
6) What is the closest equivalent to a BEST F173NRP half surface hinge from another manufacturer?
The Hager 1173 is the closest match. Like the BEST F173NRP, it is a half surface plain bearing hinge in a 5-knuckle steel design rated medium duty, so it mounts the same way: the jamb leaf mortises into the frame while the door leaf surface-applies. Both are plain bearing rather than ball bearing, which suits low frequency openings without a door closer. Confirm size and finish against what is on the opening before ordering either.
7) Is a Hager BB1109 a drop-in substitute for a BEST F173NRP?
No. The BB1109 is a half mortise hinge, meaning the frame leaf surface-applies and the door leaf mortises into the door edge - the opposite prep from the F173NRP, which is half surface and mortises the jamb leaf. The names are one word apart and the parts are not interchangeable without recutting. The BB1109 is also ball bearing rather than plain bearing, so it is built for openings that cycle harder or carry a closer. Both are 5-knuckle medium duty designs.
8) What sizes and finishes does the BEST F173NRP half surface hinge come in?
Two combinations, both 4-1/2 x 4-1/2 inches: finish 600, primed for painting, and finish 652, satin chrome over steel. The 600 is the one to order when the frame and door are getting painted out to match a color scheme; the 652 is the standard commercial satin chrome match for the rest of the hardware on a typical opening.
9) Do I need to buy screws or anything else to install the BEST F173NRP?
The hinge ships with machine screws and grommet nuts, which is what a half surface hinge needs, since the surface-applied leaf bolts through the door face rather than screwing into a mortise. Templates for marking the hole locations come from the manufacturer's installation documentation, which BEST publishes alongside the hinge.
10) I'm standardizing hinges across a building. Is the BEST F173NRP the same class of hinge as the Hager 1173?
They line up closely. Both are half surface plain bearing hinges at medium duty with a 5 knuckle configuration, and the Hager 1173 is a 4-1/2 inch steel commercial hinge, matching the 4-1/2 x 4-1/2 size the F173NRP comes in. Either will hold the same style of opening, a kalamein or wood door in a hollow metal frame. Where they differ is the pin: the BEST is specified NRP, non-removable, and the Hager 1173 record does not carry that call-out, so if security on out-swing doors drove the spec, stay with the NRP.
11) The opening gets heavy traffic and has a closer - is a plain bearing hinge like the F173NRP the right call?
For a closer-equipped or high-cycle opening, a ball bearing hinge is the usual specification. The Hager BB1109 is a 5-knuckle ball bearing hinge in medium duty, where the F173NRP and the Hager 1173 are both plain bearing designs suited to lower frequency use. Note the prep difference before switching: the BB1109 is half mortise while the F173NRP is half surface.
12) Which comparable half surface hinge carries a non-removable pin like the BEST F173NRP?
The F173NRP is specified with a non-removable pin, which is the reason it gets used on outswing doors where the hinge barrel is on the secure side of the opening. Among the half surface and half mortise alternatives, the Hager 1173 matches it on configuration - half surface, plain bearing, 5 knuckle, medium duty steel. When a hinge must resist pin removal from the exposed side, order the pin type explicitly rather than assuming the base model carries it.
13) What is the difference between a 3 knuckle and a 5 knuckle hinge, and which does the BEST F173NRP use?
Five knuckles. More knuckles spread the door load over more bearing surface along the barrel, which is why 5 knuckle is the commercial standard on full-size openings. A 3 knuckle hinge, like the Hager 800 full mortise plain bearing hinge, is a lighter build used on smaller or lighter doors. If you are matching existing hardware visually, count the knuckles on what is in the frame now.
How fast can I get the BEST BEST-F173NRP-652-4.5 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the BEST BEST-F173NRP-652-4.5 come with a warranty?
Absolutely. The BEST BEST-F173NRP-652-4.5 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the BEST BEST-F173NRP-652-4.5?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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