Quick Answer

Security Parts stocks 40 replacement components for the LCN 1260 and 1261 Series closer. The 1260 ships with the 1260-3077 regular arm and 1260-146 shaft cover as standard. Available parts include the 1261-3071 cylinder assembly, six regular arm variants, six hold-open arm variants, a CUSH arm family, EDA and HEDA arms, head and tube assemblies, rod and shoe components, standard cover, three mounting plate variants, and a full range of installation accessories. All 40 parts are stocked individually and available at Security Parts. Call 845-935-0301 for pre-order identification support.

What Is the LCN 1260 Series Door Closer?

The LCN 1260 Series is a light-to-medium duty, cast iron, surface-mounted door closer designed to fit the most common commercial door footprint at 3/4 inch by 9-1/16 inch hole spacing. It is universal and non-handed, meaning the same closer body installs on either a right-hand or left-hand door without specifying handing at order time. It mounts in three positions: hinge pull side, top jamb push side, and parallel arm push side.

The 1260 uses a non-sized cylinder adjustable from spring sizes 1 to 5. It handles interior doors to 4 feet 6 inches wide and exterior doors to 3 feet 6 inches wide. The closer body is cast iron with a full-complement bearing, a 1-3/8-inch diameter piston, and a 5/8-inch diameter heat-treated pinion journal. The all-weather hydraulic fluid performs across a wide temperature range without seasonal adjustment. The 1260 Series carries a 20-year limited warranty and is UL and cUL listed for self-closing doors without hold-open. It meets ANSI/BHMA A156.4 Grade 1 and ADA reduced opening force requirements.

The closer ships with peel-n-stick installation templates for accurate hole placement. An optional Quick Fix bracket kit (1260-18QF) is available for retrofit situations where existing mounting holes are damaged or when installing the 1260 on an opening that previously used the obsolete 1370 mounting pattern.

For a comparison of the 1260 against the 1460 and other LCN surface closer families, see the LCN 4110 Parts Guide and the LCN 4210 Parts Guide for related LCN surface closer series.

Why Does the LCN 1260 Series Page Show Model Number 1261?

This is the most common point of confusion when ordering LCN 1260 Series parts. The 1260 is the series number that identifies the closer body and all of its arm and accessory components. The 1261 is the cylinder model number that LCN uses to designate the cylinder assembly that ships inside the 1260 closer body.

LCN follows this convention across the entire surface-mounted line: the cylinder model number is one digit higher than the series number. The 1460 Series uses the 1461-3071 cylinder. The 4040 Series uses the 4041 cylinder. The 1260 Series uses the 1261-3071 cylinder. This is not an error on the product pages. Both numbers refer to the same closer family.

When ordering parts, use these prefixes:

• Use 1261- as the prefix for the cylinder assembly only.
• Use 1260- as the prefix for all arms, covers, mounting plates, accessories, and screw packs.

Numbers like "71" or "320G" stamped on the cylinder body are manufacturing reference numbers, not part numbers or model identifiers. They cannot be used to order replacement parts. The correct model number is on the sticker located on the cylinder body under the cover.

What Parts Are Available for the LCN 1260 Series?

All 40 LCN 1260 and 1261 Series replacement parts stocked at Security Parts are organized below by component category. Every part has been verified live at the time of publication.

LCN 1261 Cylinder Assembly

The 1261-3071 standard cylinder assembly is the complete closer body for the LCN 1260 Series. It is non-handed and non-sized, adjustable for spring sizes 1 to 5. This is the replacement when the closer cylinder body is damaged or leaking beyond adjustment. The hydraulic fluid in an LCN closer cannot be refilled in the field. A leaking 1261 cylinder requires replacement of the cylinder assembly or the full closer body, not a fluid refill.

LCN 1260 Arm Selection: Which Arm Do I Need?

The 1260 Series offers a wider arm selection than most facilities managers realize. All regular arms and most hold-open arms are non-handed, meaning one part number fits both right-hand and left-hand doors. The HEDA (Hold Open Extra Duty Arm) is the notable exception and is handed.

What Is the Difference Between the Regular, EDA, and CUSH Arms on the LCN 1260?

The 1260-3077 regular arm is the standard non-held-open arm that ships with the 1260 closer. It mounts hinge side or top jamb and provides basic door control with no hold-open function and no built-in door stop.

The EDA (Extra Duty Arm) series uses a heavier forged steel construction for high-traffic doors. The 1260-3077EDA/G adds a thick hub shoe (62G) that provides additional clearance past a blade stop in the door frame. Use the EDA family on openings with heavy use or where the standard arm has bent or cracked under repeated impact.

The CUSH arm (Cush-N-Stop) provides a built-in door stop in the soffit shoe. When the door reaches the end of its travel, the shoe contacts the frame and stops the door without a separate overhead or wall stop. Installing a CUSH arm with a separate overhead stop is redundant and not recommended because both mechanisms compete on the same opening. When a CUSH or EDA arm is used, the 1260-30 CUSH Shoe Support is required if the frame reveal is less than 3-1/16 inches, and the 1260-419 panel adapter is required when the head frame is flush or rabbeted.

Head and Tube Assemblies, Rod and Shoe, and Arm Components

LCN 1260 Covers: Standard Cover vs Shaft Cover

The LCN 1260 ships from the factory with a shaft cover (1260-146), not a standard plastic cover. This is an important difference from the 1460 Series, which ships with the 1460-72 slim line cover as standard.

The LCN cover part number convention applies to the 1260: the series number followed by -72. The 1260 cover is 1260-72. This convention holds across all standard LCN surface-mounted series, but the physical shape is series-specific. A 1260-72 cover cannot be substituted for a 1460-72 or any other series cover even though the numbering pattern is the same.

When Is an LCN 1260 Drop Plate Required?

This is one of the most frequently asked questions in the professional locksmith and door hardware community about the 1260 Series. Three distinct trigger conditions apply across the three mounting plate variants.

1260-18: Hinge Side and Top Jamb Drop Plate

The 1260-18 mounting plate is required in two situations:

• Hinge side (pull side) mount where the top rail is less than 2-1/2 inches measured from the stop.
• Top jamb push side mount where the head frame is less than 1-3/4 inches or a flush ceiling condition exists.

The plate requires a minimum top rail of 1-1/2 inches (38 mm) or a minimum head frame of 1-1/4 inches (32 mm).

1260-18PA: Parallel Arm Push Side Drop Plate

The 1260-18PA mounting plate is required for parallel arm push side mounting where the top rail is less than 4-3/8 inches (111 mm) measured from the stop. The plate requires a minimum top rail of 1-3/4 inches (44 mm). This plate is also required for all EDA and CUSH arm installations in the parallel arm push side configuration.

1260-18QF: The Quick Fix Bracket Kit

The 1260-18QF mounting plate is not a drop plate in the traditional sense. It is a retrofit kit that serves two specific situations:

• Adapting the LCN 1260 closer to the obsolete 1370 mounting hole pattern when replacing an old 1370-series closer in an existing opening.
• Covering damaged or stripped mounting holes in a door or frame where the original fastener positions can no longer hold the closer securely.

The 1260-18QF includes retrofit mounting plates for both the closer cylinder and the shoe. It is not a standard installation accessory and is not triggered by top rail depth.

LCN 1260 Shoes and Installation Accessories

Several accessories are required or optional depending on frame conditions and the arm type selected. These are the most common items missed at the time of initial order, and their absence delays installation.

LCN 1260 Arm Screws and Screw Packs

The correct arm screw depends on the arm type and mounting configuration. Using the wrong arm screw can result in the arm slipping or failing to hold the door position correctly.

How Do I Order the Correct LCN 1260 Replacement Part?

Confirm the following before placing any order to avoid receiving a part that does not fit the installed closer.

View all 40 LCN 1260 parts and diagrams at Security Parts commercial door closer parts. Call 845-935-0301 for pre-order identification support or to confirm specifications before ordering.

Troubleshooting Common LCN 1260 Field Issues

For installation guidance, see how to install a commercial door closer. For further adjustment help, call Security Parts at 845-935-0301.

LCN 1260 vs LCN 1460: What Is the Difference?

The 1260 and 1460 are both universal, non-handed LCN surface-mounted closers and are often specified on the same building. They look similar in the field, which creates ordering confusion. The differences matter for parts ordering because arms, hold-open arms, and the 62PA shoe are NOT interchangeable between the two series.

Where Is the LCN 1260 Specified and Where Does It Appear in the Field?

The LCN 1260 is one of the most widely installed light-to-medium duty commercial door closers in North America. Its ability to fit the most common commercial mounting footprint (3/4 inch by 9-1/16 inch hole spacing) means it installs in a large percentage of existing commercial openings without requiring new holes. This footprint compatibility is the reason it appears across so many building types.

Common 1260 installation locations include:

• Office building interior doors where ADA-compliant opening force is required and the door sees moderate daily traffic
• Retail storefront interior doors where the closer must mount on a narrow top rail or on top jamb because the door is aluminum-framed glass
• School interior corridor doors where a non-handed, quick-to-install closer simplifies building-wide replacement projects
• Healthcare facility interior doors where the door width is within the 4 foot 6 inch interior door limit
• Hotel room and corridor doors where the 20-year warranty and light-to-medium duty rating match the expected traffic level
• Replacement projects where the installer is replacing an obsolete 1070-series or 1370-series closer and wants to use the existing mounting holes

The 1260 is not appropriate for high-traffic institutional applications where the door sees several hundred cycles per day and where the heavier duty rating of the 1460 or the 4000 Series is the correct specification. For guidance on selecting the right closer for a specific application, see the LCN 4110 Parts Guide or call Security Parts at 845-935-0301.

LCN 1260 Body Specifications and Construction Details

Understanding the internal construction of the 1260 helps maintenance staff identify when a part can be adjusted or repaired versus when the full cylinder assembly needs replacement.

• Cylinder body: Cast iron
• Bearing: Full-complement bearing
• Piston diameter: 1-3/8 inches
• Pinion journal diameter: 5/8 inch, heat-treated steel
• Fluid: All-weather hydraulic fluid
• Arm material: Forged steel
• Spring sizes: Non-sized, adjustable from size 1 to 5
• Mounting footprint: 3/4 inch by 9-1/16 inch center-to-center hole spacing (matches most common commercial pattern)
• Certifications: ANSI/BHMA A156.4 Grade 1, UL and cUL listed, ADA compliant, BAA (Buy American Act) compliant
• Warranty: 20-year limited

The all-weather hydraulic fluid performs across a wide temperature range without seasonal closing speed adjustment. Regulation valves control general closing speed, latch speed, and backcheck. Do not open any regulation valve more than three turns from the fully closed position. The hydraulic fluid cannot be refilled in the field. A closer that has lost hydraulic fluid requires replacement of the 1261-3071 cylinder assembly.

How to Identify the LCN 1260 Model Number in the Field

The most common mistake technicians make when ordering 1260 Series parts is reading the casting or forging number stamped on the cylinder body surface and trying to order parts using that number. Numbers like "71" or "320G" stamped on the 1261 cylinder body are manufacturing reference numbers, not part numbers or model designations. They cannot be used to identify or order replacement parts.

The correct method for identifying the LCN 1260 Series in the field:

1. Remove or open the cover on the closer body.
2. Look for the model identification sticker on the cylinder body. The sticker shows the model number (for example, 1261) and typically includes a date code.
3. The date code is a four-digit number. The first two digits indicate the week of manufacture. The last two digits indicate the year. For example, "2322" means the 23rd week of 2022.
4. Confirm the series (1260) and use 1260 as the prefix for all arm, cover, and accessory part numbers. Use 1261 as the prefix when ordering the cylinder assembly.

If the sticker is worn or missing, the model can often be confirmed by the mounting footprint. The 1260 uses the standard 3/4 inch by 9-1/16 inch hole pattern. If the existing holes match this pattern and the closer body is a cast iron surface-mounted closer sized for a door up to 4 feet 6 inches wide, the 1260 is the correct series.

LCN 1260 Arm Cross-Compatibility: What Works on Other Series

One of the most useful facts for maintenance teams managing buildings with multiple LCN closer models is that the 1260-3077 regular arm is compatible with several other LCN series. However, the hold-open arm, the 62PA parallel arm shoe, and the CUSH and EDA arms are series-specific and cannot be shared.

The spindle on the 1260 and 1460 is different from the spindle on the 4040XP. This means that arms from the 4040XP cannot be used on the 1260 or 1460. Confirm the installed closer series from the model sticker before ordering any arm replacement.

About Security Parts

Security Parts has supplied genuine OEM commercial door hardware replacement components to locksmiths, glaziers, facilities managers, contractors, and security integrators since 2001. All 40 LCN 1260 and 1261 Series replacement parts listed in this guide are stocked and available for individual order. The 1260 and 1460 arms, hold-open arms, and 62PA shoes are not interchangeable despite the series numbers being sequential. Confirm the installed series from the model sticker under the cover before placing any order. For pre-order identification support, call 845-935-0301. Security Parts has stocked and shipped genuine OEM commercial door hardware replacement components since 2001. Every part page includes a diagram view and a parts lookup tool organized by series and model number, so technicians can confirm the correct part number before placing an order. The 1260 series is a common replacement project for anyone managing older buildings with obsolete 1070-series or 1370-series closers, and the 1260-18QF Quick Fix bracket kit was specifically designed for that retrofit scenario. Confirm the installed model and the frame conditions before ordering to avoid returns and delays on any 1260 Series parts project.

LCN 1260 Peel-N-Stick Templates and Installation Notes

The LCN 1260 Series ships with peel-n-stick installation templates that eliminate the need to mark and measure mounting hole positions manually. Each template sticks directly to the door or frame, shows the exact drill points for the selected mounting configuration, and peels off cleanly after installation. Template numbers vary by mounting type: template 29804 covers pull side and top jamb mounts, template 29805 covers the parallel arm push side mount, template 29808 covers the EDA mount, template 29809 covers CUSH and Spring CUSH mounts, template 29810 covers drop plate installations, template 29811 covers the Quick Fix bracket, and template 29901 covers the 62A shoe installation. These template numbers are reference information only. The templates are included in the closer package or in the relevant arm and accessory kits when ordering from Security Parts.

For fire-rated door applications, confirm the fire rating of the door assembly and the specific hold-open requirements with the authority having jurisdiction before specifying any hold-open closer or arm. See the commercial door fire rating guide for guidance on fire rating requirements for commercial door hardware.

Related Resources at Security Parts

• Commercial Door Closer Parts and Diagrams
• LCN 1000 Series and Overhead Concealed Door Closer Parts Guide
• LCN 4110 Parts Guide
• LCN 4210 Parts Guide
• How to Install a Commercial Door Closer
• Commercial Door Fire Rating Guide