Name: LCN 4050A-3077/62A Regular Arm with 62A Auxiliary Shoe
Brand: LCN
SKU: 4050A-3077/62A 689
Price: 169.31 USD
Availability: InStock

Product Overview
FAQs

LCN 4050A Series Regular Arm with 62A Auxiliary Shoe

Professional Door Closer Replacement Component

The LCN 4050A Series Regular Arm with 62A Auxiliary Shoe is a precision-engineered replacement component designed for 4050A Series door closers. This non-handed arm assembly provides reliable operation and maintains ADA compliance for commercial door control applications. The integrated 62A auxiliary shoe ensures proper door positioning and smooth operation throughout the closing cycle.

Professional Features & Benefits

4050A Series Compatibility: Specifically designed for LCN 4050A Series door closers ensuring perfect fit and reliable performance.
Non-Handed Design: Universal configuration eliminates the need for separate left and right-hand components, simplifying inventory and installation.
Integrated 62A Auxiliary Shoe: Includes auxiliary shoe component for enhanced door positioning and operational control.
ADA Compliant Operation: Maintains compliance with accessibility requirements when properly installed and adjusted.
Commercial-Grade Construction: Built to withstand demanding commercial applications with reliable long-term performance.
Precision Engineering: Manufactured to exact LCN specifications for seamless integration with existing door closer systems.

Technical Specifications

ADA Compliant: Yes
Commercial/Residential: Commercial
Department: Door Hardware
Parts and Accessories Type: Replacement Parts
Product Attribute: Parts and Accessories
Product Category: Door Controls
Product Group: Door Controls
Product Model: 4050A-3077/62A
Product Subgroup: Parts and Accessories
Product Type: Arm
Series: 4050A Series
Subcategory: Parts and Accessories

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 LCN Quality?

LCN door closer components deliver professional-grade reliability with precision manufacturing designed for demanding commercial applications. This replacement arm maintains the original performance specifications of your 4050A Series door closer while ensuring continued ADA compliance. Engineered for demanding commercial applications where dependable door control performance is essential.

Manufacturer Resources

LCN Full Line Catalog

Product Specs

Series:: 4050A Series
Subcategory:: Parts and Accessories
Product Group:: Door Controls
Product Subgroup:: Parts and Accessories
Product Type:: Door Closer Arms
Commercial/Residential:: Commercial
ADA Compliant:: Yes
Parts and Accessories Type:: Replacement Parts
Product Attribute:: Parts and Accessories
Product Model:: 4050A-3077/62A
Product Category:: Door Controls
Department:: Door Hardware

LCN 4050A-3077/62A 689 – Frequently Asked Questions

1) Will the LCN 4050A-3077 regular arm work on a left-hand and a right-hand door?

The 4050A-3077 arm with 62A auxiliary shoe is non-handed, so the same part goes on either swing. One part number covers both hands, which is why property managers stocking spares for a building only need to keep one on the shelf.

2) Which LCN door closers does the 4050A-3077 arm with 62A shoe fit?

It is built for LCN 4050A Series closers. The arm and the 62A auxiliary shoe are matched to that body, so if the closer on the door is a 4050A this is the replacement assembly. A closer from another LCN series takes its own arm, so read the label on the closer body before you order.

3) Does replacing the arm on a 4050A closer keep the opening ADA compliant?

Yes, the 4050A-3077 arm assembly is ADA compliant when installed and adjusted properly. Compliance on a closer is a function of opening force and closing speed, so the adjustment after install is what holds it, not the arm alone. For schools, healthcare and government buildings replacing a damaged arm rather than the whole closer, this keeps the opening where it needs to be.

4) Is a regular arm the right choice, or should I be using a parallel arm on this door?

A regular arm mounts on the pull side of the door with the closer on the door face, and the arm projects out from the frame. That is the standard configuration and it gives you the most efficient closing power. Where the arm would be exposed to abuse or the door swings into a corridor, a parallel arm mounted on the push side is the usual call instead, and that is a different arm assembly, not an adjustment to this one. Falcon offers parallel arm assemblies such as the SC60A-3049DS hold-open dead stop for SC60A closers, and Sargent the 25-CPS parallel arm with compression stop for 351 and 281 closers, though each of those is matched to its own closer body.

5) Can I put an LCN 4050A arm on a Sargent or Falcon closer?

No. Closer arms are matched to the closer body they mount on, and this one is made for the LCN 4050A Series. If the body on the door is a Sargent 351 or 281, the arm you want is a Sargent part such as the 25-H hold-open arm for standard and top jamb mount. If it is a Falcon SC70A, that takes the Falcon SC70A-3049/PA hold open arm with PA bracket. Read the closer body, then match the arm to it.

6) I need the door to stay open. Does this LCN 4050A arm hold open?

No. The 4050A-3077 is a regular arm, a plain closing arm with the 62A shoe, with no hold-open feature. For a hold-open you need a hold-open arm matched to your closer, for example the Sargent 25-CPSH hold-open parallel arm with compression stop for 351 and 281 closers, or the Falcon SC70A-3049/PA hold open arm for SC70A closers. On a fire-rated opening, hold-open has to be the code-approved type for that door, so do not add one to a rated opening without confirming the assembly.

7) What is the difference between the LCN 4050A-3077/62A regular arm and the Sargent 25-H arm?

The LCN 4050A-3077/62A is a regular arm with a 62A auxiliary shoe built for LCN 4050A Series closers, and it is non-handed. The Sargent 25-H is a hold-open arm for Sargent 351 and 281 closers in standard and top jamb mount. The LCN arm closes the door through its full cycle with no hold-open feature; the Sargent 25-H adds hold-open. They also serve different closer bodies, so the choice follows the closer already on the door rather than the arm function alone.

8) The door needs a stop built into the arm so it cannot swing into a wall. Is the 4050A-3077/62A the right part?

The 4050A-3077/62A is a regular arm with a 62A auxiliary shoe and does not carry a built-in stop. Arms that build the stop into the assembly include the Sargent 25-CPS, a heavy-duty parallel arm with compression stop for 351 and 281 closers, the Sargent 25-CPSH, which adds hold-open to that compression stop, and the Falcon SC60A-3049DS, a hold-open dead stop parallel arm assembly. All three mount parallel arm, so the closer body and mounting on the opening decide which one fits.

9) Will a Falcon 8230-3077PLCM arm work on an LCN 4050A closer?

No. The Falcon 8230-3077PLCM is a standard arm with track for Falcon 8230 Series automatic door operators, part of the 8200 Series. The LCN 4050A-3077/62A is built to LCN 4050A Series dimensions and pairs a regular arm with the 62A auxiliary shoe. The two share a similar 3077 arm designation but belong to different closer platforms, and the Falcon part also runs in a track rather than a shoe on the door face. Match the arm to the closer body stamped on the unit.

10) What is the equivalent Sargent part for a surface closer arm on a heavy traffic commercial opening?

For heavy traffic on a Sargent closer, the Sargent 25-CPS is a heavy duty, Grade 1 parallel arm with compression stop, and the Sargent 1431-CPS TB EN is a heavy duty Grade 1 surface door closer supplied with a parallel arm and compression stop, so it replaces the whole closer rather than just the arm. The LCN 4050A-3077/62A is an arm and shoe only, for commercial use on an existing 4050A Series closer. If the closer body is sound, an arm swap keeps the existing unit; if it is not, the 1431-CPS TB EN brings a complete assembly.

11) The door is center hung on floor pivots. Does the 4050A-3077/62A regular arm apply?

No. A center hung pivoted door with an overhead concealed closer takes a pivot and end load arm rather than a surface regular arm. The Falcon OHC100A-DP is a center hung floor pivot with end load arm for Falcon OHC100 Series door closers. The LCN 4050A-3077/62A is a regular arm with a 62A auxiliary shoe that mounts to a surface 4050A Series closer on a butt hung door.

12) What does the 62A auxiliary shoe do and do I need it if I'm just replacing a bent closer arm?

The 62A is the auxiliary shoe that anchors the forearm to the door or frame and sets door positioning through the closing cycle. It ships as part of this assembly, so you get arm and shoe together. If your existing shoe is sound you still receive both, and there is no need to source the shoe separately.

13) What finishes does the LCN 4050A regular arm come in, and can I match the closer already on the door?

Six finishes: 689 aluminum, 690 statuary bronze, 691 light bronze, 693 gloss black, 695 dark bronze and 696 brass. Those are the standard LCN painted finish codes, so match the number stamped or specified on the existing closer and the replacement arm blends into the run of doors instead of standing out.

14) Do I have to replace the whole door closer, or can I just buy the arm?

Just the arm. The 4050A-3077 with 62A shoe is sold as a replacement component for a 4050A closer, so a bent or sheared arm, a common failure when a door gets forced past its stop, is a parts swap rather than a full closer change. The closer body, mounting screws in the door and the existing prep all stay as they are.

15) Is a parallel arm assembly a substitute for the LCN 4050A-3077/62A?

Not directly. The 4050A-3077/62A is a regular arm, which mounts with the closer on the pull side and the shoe on the frame. Parallel arm assemblies such as the Sargent 25-CPS and the Falcon SC70A-3049/PA, which ships with a PA bracket, mount the closer on the push side under the frame soffit. Changing between the two changes the mounting position, the bracket needed, and the drilling on the door and frame, so it is a different installation and not a drop-in exchange.

16) We are standardizing door closer arms across a facility. Does buying one arm type cover every closer?

No, closer arms follow the closer body. The LCN 4050A-3077/62A serves LCN 4050A Series closers. The Sargent 25-CPS, 25-CPSH and 25-H serve Sargent 351 and 281 closers. The Falcon SC60A-3049DS serves SC60A Series, the SC70A-3049/PA serves SC70A Series, the OHC100A-DP serves OHC100 Series, and the 8230-3077PLCM serves the 8230 Series automatic operators. Standardizing means inventorying which closer bodies are on the doors first, then stocking the matching arm for each. The 4050A-3077/62A is non-handed, so one part number covers both hands of every 4050A opening.

17) The opening needs to stay ADA compliant after an arm replacement. How does the 4050A-3077/62A compare to the alternatives?

The LCN 4050A-3077/62A maintains ADA compliant operation when properly installed and adjusted on a 4050A Series closer, so an arm swap keeps the opening as specified. Where the closer body itself is being replaced, the Sargent 1431-CPS TB EN is a heavy duty Grade 1 surface closer with parallel arm and compression stop, and the Sargent 25-CPS carries the same heavy duty Grade 1 rating as an arm assembly. Opening force on any of them is set at the closer during adjustment, not chosen by the arm part number.

18) Is the LCN 4050A regular arm rated for commercial traffic or is it a residential part?

Commercial. The 4050A-3077 arm assembly is a commercial-duty replacement part, used on office buildings, schools, hospitals, retail, warehouses, multi-tenant residential and municipal buildings. It is not a light-duty residential closer component.

19) Do the comparable arms come in the same finishes as the LCN 4050A-3077/62A?

The LCN 4050A-3077/62A regular arm with 62A shoe is offered in 689 aluminum, 690 statuary bronze, 691 light bronze, 693 gloss black, 695 dark bronze and 696 brass, which covers matching to closers and hardware already on the openings. The Falcon and Sargent arm assemblies are identified by their series and function rather than by a finish range, so on a mixed retrofit confirm the finish code against the closer body it will mount to.

How fast can I get the LCN 4050A-3077/62A 689 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 LCN 4050A-3077/62A 689 come with a warranty?

Absolutely. The LCN 4050A-3077/62A 689 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 LCN 4050A-3077/62A 689?

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

Why buy the LCN 4050A-3077/62A 689 from ZenSupply?

ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.

LCN 4050A-3077/62A Regular Arm with 62A Auxiliary Shoe

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