Name: LCN 4050A-3049SCNS Spring Hold Open Cush-n-Stop Arm with Forged Steel Construction
Brand: LCN
SKU: 4050A-3049SCNS 689
Price: 340.39 USD
Availability: InStock

Product Overview
FAQs

LCN 4050A Series Spring Hold Open Cush-n-Stop Arm with Forged Steel Construction

Professional Door Closer Replacement Arm Component

The LCN 4050A Series Spring Hold Open Cush-n-Stop Arm delivers professional-grade door control functionality with solid forged steel construction for demanding commercial applications. This non-handed replacement arm features a spring-loaded stop mechanism integrated into the soffit shoe, providing reliable hold-open operation with cushioned stopping action. The handle-controlled hold-open function offers convenient operation while the forged steel main arm and forearm construction ensures durability in potentially abusive applications.

Professional Features & Benefits

Heavy-Duty Construction: Solid forged steel main arm and forearm provide exceptional durability for commercial applications and potentially abusive environments.
Spring-Loaded Stop Mechanism: Integrated spring-loaded stop in the soffit shoe delivers reliable cushioned stopping action for smooth door operation.
Handle-Controlled Hold Open: Convenient handle operation allows easy control of the hold-open function for flexible door positioning.
Non-Handed Design: Universal configuration works with both left-hand and right-hand door applications for installation flexibility.
4050A Series Compatibility: Designed specifically for LCN 4050A Series door closers for precise fit and optimal performance.
ADA Compliant Design: Meets ADA compliance requirements for accessible door hardware applications.
Commercial-Grade Performance: Engineered for high-traffic commercial environments where reliable door control is essential.

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-3049SCNS
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 solid forged steel construction engineered for potentially abusive applications. ADA compliant design ensures accessibility compliance while the spring-loaded cushioning mechanism provides smooth, controlled door operation. Engineered for demanding commercial applications where dependable performance and durability are 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-3049SCNS
Product Category:: Door Controls
Department:: Door Hardware

LCN 4050A-3049SCNS 689 – Frequently Asked Questions

1) Will the LCN 4050A-3049SCNS arm work on a left-hand door, or do I need to order handed?

Non-handed. The 4050A-3049SCNS Cush-n-Stop arm installs on left-hand or right-hand openings without ordering a separate version, so a property manager stocking one spare covers every door in the building running a 4050A closer.

2) What LCN closer does the 3049SCNS Cush-n-Stop arm fit?

It is built for LCN 4050A Series closers. The 3049SCNS is a replacement arm only, not a complete closer, so the closer body has to already be a 4050A. If the body on the door is a different LCN series, this arm is the wrong part.

3) Does a Cush-n-Stop arm remove the need for a separate floor or wall door stop?

That is the point of it. The soffit shoe on the 4050A-3049SCNS carries a built-in spring-loaded stop that cushions the door at the open position, so the arm itself takes the overtravel instead of a wall bumper. On a parallel-arm application where there is no wall behind the door to mount a stop, that matters.

4) I need a hold-open arm with a stop but my closer is a Sargent, not an LCN. What do I order?

Arms are not cross-brand. For a Sargent 351 or 281 closer, the 25-CPSH heavy-duty hold-open parallel arm with compression stop is the equivalent part, and the 25-H is the hold-open arm for standard and top jamb mount without the compression stop. On Falcon bodies, the SC60A-3049DS is the hold-open dead stop parallel arm for SC60A closers and the SC70A-3049/PA is the hold-open arm with PA bracket for SC70A. Match the arm to the closer body you already have on the door.

5) What is the difference between a spring hold open Cush-n-Stop arm and a dead stop arm?

The LCN 4050A-3049SCNS carries a spring-loaded stop in the soffit shoe, so the door meets the stop with a cushioned action rather than a hard one, and the hold-open is set by a handle on the arm. The Falcon SC60A-3049DS is a hold-open dead stop arm, meaning the stop is rigid at the stop point instead of sprung. Both hold the door open and both stop it; the cushioned version absorbs the impact at the stop, which matters on high-traffic openings and in wind-loaded exterior doors. Choose by how hard the opening gets used, not by the label.

6) What is the closest equivalent to the LCN 4050A-3049SCNS hold open arm from another manufacturer?

The Sargent 25-CPSH is a heavy-duty hold-open parallel arm with compression stop built for the Sargent 351 and 281 closers, which puts it in the same role as the LCN 4050A-3049SCNS: a hold-open arm with an integral stop. The difference is the closer body each one belongs to. The 4050A-3049SCNS is built for LCN 4050A Series closers, so it is only a like-for-like swap if the closer on the door is a 4050A. On a Sargent 351 or 281 body, the 25-CPSH is the arm that fits. Confirm the closer casting before ordering either one, because door closer arms are not interchangeable across manufacturers.

7) Our door is center hung on a floor pivot. Will the LCN 4050A-3049SCNS arm work?

No. The LCN 4050A-3049SCNS is a surface closer arm for LCN 4050A Series closers mounted on the door or frame face. A center hung door on a floor pivot uses a different assembly, such as the Falcon OHC100A-DP center hung floor pivot with end load arm for OHC100 Series door closers. Confirm whether the door swings on butt hinges or on a center pivot before ordering, because the arm geometry is built around that pivot point.

8) How does the hold-open work on the LCN 4050A spring hold open arm, and can it be switched off?

Hold-open is handle-controlled on this arm. The user sets the hold with the handle rather than the door catching automatically at a preset degree, so staff can prop a door for a delivery and then release it. Because the hold is operator-selected, it is not a device you would put on an opening that must stay self-closing at all times.

9) Is a forged steel closer arm worth it on a door that gets abused?

Both the main arm and forearm on the 3049SCNS are solid forged steel, which is the construction LCN specifies for potentially abusive applications. On schools, dorms, stairwells, and back-of-house doors where people push the door past the stop, the arm is the part that bends first, and forged steel is what keeps it from becoming a recurring repair.

10) Is the LCN 4050A Cush-n-Stop arm ADA compliant for an accessible entrance?

The 4050A-3049SCNS is listed ADA compliant. Worth knowing that on a closer, ADA compliance comes down to opening force and closing speed set at the closer body and valves, not at the arm, so the arm has to be paired with a 4050A body adjusted to the accessible opening force for the opening to actually comply.

11) Can I buy just a replacement arm, or do I have to replace the whole closer?

Both paths exist. The LCN 4050A-3049SCNS is a replacement arm component for 4050A Series closers, so a damaged or bent arm on an otherwise sound closer is an arm-only order. If the closer body itself is leaking or worn out, a complete unit such as the Sargent 25-CPS, a heavy duty Grade 1 parallel arm door closer with compression stop, or the Sargent 1431-CPS TB EN surface closer with parallel arm and compression stop, replaces the closer and arm together. Inspect the body for oil weep before deciding which order to place.

12) Is the Falcon 8230-3077PLCM arm a substitute for the LCN 4050A-3049SCNS?

No. The Falcon 8230-3077PLCM is a standard arm with track for 8230 Series automatic door operators, so it serves a powered operator and rides in a track. The LCN 4050A-3049SCNS is a spring hold open Cush-n-Stop arm for 4050A Series manual surface closers, with the stop built into the soffit shoe. Different closer platform, different motion, and a track arm needs the track head the operator provides. They are not cross-substitutable.

13) We want to standardize hold-open arms across a building that has mixed closers. What are the options by manufacturer?

Standardize on the closer, not on the arm, because each arm follows its own closer series. The hold-open arms across the major lines are the LCN 4050A-3049SCNS for LCN 4050A Series closers, the Sargent 25-H for Sargent 351 and 281 closers in standard and top jamb mount, the Sargent 25-CPSH for the same Sargent bodies when a compression stop is wanted, the Falcon SC60A-3049DS for SC60A Series, and the Falcon SC70A-3049/PA for SC70A Series. The practical approach in a mixed building is to survey which closer bodies are on which doors, then stock the matching arm for each family rather than trying to force one part number across all of them.

14) If the opening does not need a stop built into the arm, is there a simpler hold-open arm?

Yes, if the door already has a wall or floor stop. The Sargent 25-H is a hold-open arm for 351 and 281 closers in standard and top jamb mount and does the hold-open job without a compression stop in the arm. The LCN 4050A-3049SCNS and the Sargent 25-CPSH both integrate a stop into the arm assembly, which is what you want when there is no separate stop or when the wall behind the door cannot take one. Decide by whether an independent stop already exists at the opening, then order the arm that matches the closer on the door.

15) Is the LCN 3049SCNS arm suitable for a residential door?

It is a commercial-duty part. The 4050A-3049SCNS is specified for commercial door control, the kind of service you see in office buildings, schools, healthcare, retail, warehouses and multi-tenant residential common areas. On a single interior house door it is more arm than the opening needs and will not mate with residential closer bodies anyway.

16) Does the LCN 4050A-3049SCNS come in a finish that matches Sargent or Falcon hardware on the same building?

The LCN 4050A-3049SCNS arm is offered in 689 aluminum, 690 statuary bronze, 691 light bronze, 693 gloss black, 695 dark bronze, and 696 brass. Those are standard BHMA finish numbers, so a 689 aluminum arm reads as the same finish as any other 689 hardware at the opening regardless of which manufacturer made it. Order by the finish number already on the door rather than by the color name.

17) Do I have to specify handing when ordering a replacement hold open arm?

Not for the LCN 4050A-3049SCNS. It is non-handed, so one part number covers both left-hand and right-hand doors and you only choose a finish. Some competing closer arms, such as the Falcon SC70A-3049/PA, ship with a specific mounting bracket for the SC70A Series, which is a bracket and series match rather than a handing call. Either way, the detail that governs the order is the closer series on the door.

How fast can I get the LCN 4050A-3049SCNS 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-3049SCNS 689 come with a warranty?

Absolutely. The LCN 4050A-3049SCNS 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-3049SCNS 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-3049SCNS 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-3049SCNS Spring Hold Open Cush-n-Stop Arm with Forged Steel Construction

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