Name: LCN 4050A-3049L Long Hold Open Arm with Adjustable Shoe
Brand: LCN
SKU: 4050A-3049L 689
Price: 200.81 USD
Availability: InStock

Product Overview
FAQs

LCN 4050A Series Long Hold Open Arm with Adjustable Shoe

Professional Door Closer Replacement Component

The LCN 4050A Series Long Hold Open Arm provides reliable hold-open functionality for commercial door closer applications. This non-handed replacement arm features an adjustable shoe design and includes the long head and tube assembly (4050A-3048L) for top jamb mount configurations. Engineered for ADA-compliant commercial installations, this component ensures consistent door positioning and smooth operation.

Professional Features & Benefits

Non-Handed Design: Universal configuration eliminates the need for separate left and right-hand components, simplifying inventory and installation.
Adjustable Shoe: Hold open position can be customized to meet specific application requirements and user preferences.
Complete Assembly: Includes long head and tube (4050A-3048L) for comprehensive top jamb mount installation.
4050A Series Compatibility: Designed specifically for LCN 4050A Series door closers for guaranteed fit and performance.
ADA Compliance: Meets accessibility requirements for commercial door hardware applications.
Commercial-Grade Construction: Built to withstand the demands of high-traffic commercial environments with reliable long-term performance.

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-3049L
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 engineering designed for demanding commercial applications. This 4050A Series replacement arm maintains the same quality standards as original equipment, ensuring dependable performance and ADA compliance. Engineered for commercial environments where consistent door control and accessibility 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-3049L
Product Category:: Door Controls
Department:: Door Hardware

LCN 4050A-3049L 689 – Frequently Asked Questions

1) Will the LCN 4050A-3049L hold open arm fit any LCN closer, or only the 4050A Series?

Only the 4050A Series. The 3049L arm is built for LCN 4050A Series door closers, and it ships with the long head and tube assembly (4050A-3048L) for top jamb mount. If the closer body on your door is a different LCN series, this arm is the wrong part, so read the model off the closer cover before ordering.

2) Do I have to order a left hand or right hand version of the LCN 4050A long hold open arm?

No handing to specify. The 4050A-3049L is non-handed, so the same arm works on left hand and right hand openings. For a property manager carrying spares across a building, that means one part number covers every door running a 4050A closer instead of stocking two.

3) Is this LCN hold open arm for top jamb mount or parallel arm mount?

Top jamb mount. The long head and tube assembly (4050A-3048L) included with the 3049L arm is the top jamb configuration, where the closer body mounts on the frame face above the door and the arm reaches down to the door. If your existing closer is mounted on the push side with a parallel arm bracket, this is not the assembly you want.

4) I need the door held open AND stopped before it hits the wall. Is a hold open arm enough?

Those are two different jobs. The 4050A-3049L holds the leaf at a set position through its adjustable shoe, but it is not a stop arm. If the door needs a positive stop built into the arm, look at a dead stop or compression stop arm instead: the Falcon SC60A-3049DS is a hold open dead stop parallel arm, and the Sargent 25-CPSH pairs hold open with a compression stop. Otherwise plan on a separate wall or floor stop.

5) Can I use a hold open closer arm on a fire rated door?

Not on its own. A mechanical hold open arm keeps a door open with nothing to release it, and fire doors must be self closing and self latching, so a hold open arm belongs only on non-rated openings unless the hold open is tied into a listed release device on the fire alarm. In a hospital or school corridor, that distinction decides whether the arm is legal on that leaf. The 4050A-3049L is a mechanical hold open arm for commercial doors.

6) The door needs a hold open arm that also stops the door - what should I use instead of the 4050A-3049L?

Use an arm that combines hold-open with a stop. The Falcon SC60A-3049DS is a hold-open dead stop parallel arm assembly, and the Sargent 25-CPSH is a heavy duty hold-open parallel arm with compression stop, rated Grade 1. Both put the stop function in the arm itself. The LCN 4050A-3049L is a long hold open arm with an adjustable shoe for top jamb mount, so it controls where the door holds but does not carry a dead stop or compression stop. Match the replacement to the closer body on the door: the SC60A-3049DS is an SC60A Series part and the 25-CPSH suits Sargent 351 and 281 closers.

7) What is the closest equivalent to the LCN 4050A-3049L hold open arm from another brand?

The Sargent 25-H is the nearest cross-brand match. It is a hold-open door closer arm covered for standard and top jamb mount, which is the same mounting territory the LCN 4050A-3049L long hold open arm serves with its long head and tube assembly. The Sargent 25-H is built for the Sargent 351 and 281 closers, so it is a hold-open arm of the same character rather than a part that drops onto an LCN 4050A body. Choose by the closer already on the door: LCN 4050A closers take the 4050A-3049L, Sargent 351 or 281 closers take the 25-H.

8) The door is center hung on a floor pivot - is the 4050A-3049L the right arm?

No. A center hung pivot opening calls for hardware built for that geometry, such as the Falcon OHC100A-DP center hung floor pivot with end load arm for OHC100 Series door closers. The LCN 4050A-3049L is a surface closer arm with an adjustable shoe, supplied with the 4050A-3048L long head and tube for top jamb mount, which assumes a surface mounted 4050A closer at the head of the door rather than a pivot at the floor.

9) Can I set where the door stays open with the LCN 4050A hold open arm?

Yes, the hold open point is adjustable. The 3049L uses an adjustable shoe, so you set the hold open position on site rather than accepting a fixed angle. That is what lets you hold a classroom or corridor door short of a wall or an adjacent leaf instead of letting it swing to a fixed stop.

10) Does replacing a closer arm with the LCN 4050A-3049L keep the opening ADA compliant?

The 4050A-3049L is an ADA compliant component for commercial door hardware, so swapping in the correct arm keeps the closer assembly to the accessibility spec it was installed under. Worth noting for hold open arms specifically: the arm holds the leaf open, it does not change the closer's spring power or closing speed, so those adjustments stay on the closer body.

11) Is the LCN 4050A-3049L a complete arm assembly or just the arm forearm?

It comes as the arm plus the long head and tube assembly, part 4050A-3048L, for the top jamb configuration. What it does not include is the closer body itself. This is sold as a replacement part, so it is what you buy when the closer still works and the arm is bent, seized, or the hold open has quit.

12) Can I use a Sargent 25-CPS instead of the LCN 4050A-3049L?

Only if you do not need the door to hold open. The Sargent 25-CPS is a heavy duty parallel arm with compression stop, Grade 1, for 351 and 281 closers - it is the non-hold-open member of that family, while the 25-CPSH is the hold-open version. The LCN 4050A-3049L is a hold open arm, so swapping to a 25-CPS drops the hold-open function entirely, and it is a Sargent part rather than an LCN 4050A Series component. If the opening genuinely does not want hold-open, that is a deliberate downgrade in function, not a like-for-like replacement.

13) What is the difference between the LCN 4050A-3049L and the Falcon SC70A-3049/PA hold open arm?

Both are hold open arms, but they differ in what comes in the box and which closer they serve. The Falcon SC70A-3049/PA is a hold open arm supplied with a PA bracket for SC70A Series door closers, so it is set up for parallel arm mounting. The LCN 4050A-3049L is a non-handed long hold open arm with an adjustable shoe, and it includes the 4050A-3048L long head and tube for top jamb mount. Pick by mounting condition and by the closer body already on the door.

14) I need a Grade 1 hold open solution for a high traffic door - how does the 4050A-3049L compare to the Sargent 1431-CPS TB EN?

They are different scopes of purchase. The Sargent 1431-CPS TB EN is a complete heavy duty surface door closer with parallel arm and compression stop, Grade 1 - a whole closer, not an arm. The LCN 4050A-3049L is a replacement arm for 4050A Series closers, for commercial use, so it presumes a 4050A closer is already on the door and you are restoring or converting the arm. If the existing closer body is sound, the arm is the part to order; if you are outfitting a new opening or replacing a failed closer, a complete unit such as the 1431-CPS TB EN is the right shape of order.

15) Will the Falcon 8230-3077PLCM arm work as a substitute for the LCN 4050A-3049L?

No. The Falcon 8230-3077PLCM is a standard arm with track for 8230 Series automatic door operators, an 8200 Series part - it belongs to a powered operator, and a track arm behaves differently from a swing arm regardless. The LCN 4050A-3049L is a hold open arm with adjustable shoe for 4050A Series manual surface closers. The two are not interchangeable in either direction; order by the series stamped on the unit at the head of the door.

16) Which hold open arm should I standardize on across a building with mixed closers?

Standardize by closer brand and series, not by arm. The LCN 4050A-3049L covers 4050A Series openings, is non-handed so one part number serves both hands, is ADA compliant, and comes in six finishes including 689 aluminum, 690 statuary bronze, 693 gloss black and 695 dark bronze. Doors carrying Sargent 351 or 281 closers take the Sargent 25-H hold-open arm for standard and top jamb mount, or the 25-CPSH where a compression stop is also wanted. Falcon SC70A closers take the SC70A-3049/PA. Group the door schedule by closer series first, then pick the matching arm and hold the finish constant across the group.

17) What finishes does the LCN 4050A long hold open arm come in?

Six finishes: 689 aluminum, 690 statuary bronze, 691 light bronze, 693 gloss black, 695 dark bronze, and 696 brass. Match the number to the closer body already on the door rather than to the description, since 690, 691 and 695 are three different bronzes and they do not read the same across a lobby.

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

Absolutely. The LCN 4050A-3049L 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-3049L 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-3049L 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-3049L Long Hold Open Arm with Adjustable Shoe

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