Security Parts carries parts for the LCN 1000 Series surface-mounted closers (1260 and 1460) and the overhead concealed series including 2010/5010, 2030/5030/6030 Pacer, and 3030/3130. The 1000 Series are universal closers: both the 1260 and 1460 fit left and right hand doors without specifying handing. The arm screw 159 (1/4-20, 3/4-inch head) holds the arm to the spindle across all major LCN surface-mounted series. The regular arm 3077 works on 1260, 1460, 4010, 4020, and 4040 closers. Arms are not cross-compatible between the 1000 Series and the 4040XP. Cover part numbers follow the convention: series number followed by -72 (for example, 1460-72 for the 1460 cover). All overhead concealed series use cast iron cylinders and forged steel pistons with all-weather fluid.

The LCN product catalog covers considerably more than just the 4040XP. The 1000 Series surface-mounted closers are on more light commercial, educational, and healthcare interior doors than any other LCN surface-mounted line. The overhead concealed series: 2010, 5010, 2030, 5030, 6030, 3030, and 3130, cover institutional, aluminum storefront, and interior door applications where a visible surface-mounted closer is not acceptable architecturally. Each series uses different parts that are not cross-compatible with other series even within the same LCN catalog.

Browse the complete LCN parts catalog at SecurityParts.com. For the full LCN door closer and automatic operator catalog, browse the commercial door closer parts catalog.

Surface Mounted vs Overhead Concealed: Choosing the Right LCN Series

Every LCN door closer falls into one of two fundamental categories: surface mounted (the closer body is visible on the door face or header) or overhead concealed (the closer mechanism is hidden inside the door, frame, or transom). The choice between them is driven by the application, the architectural requirement, and the door construction. Parts are never cross-compatible between the two categories.

Surface mounted closers are faster to install, easier to service, and carry lower installed cost. The closer body, arm, and cover are all visible on the door face. The 1000 Series (1260 and 1460) and the 4000 Series (4040XP, 4040, 4000) are both surface-mounted. They are the correct choice for any commercial door where concealment is not required.

Overhead concealed closers hide the mechanism inside the door or frame, leaving only the arm or track visible or nothing visible at all when the door is closed. They are specified on high-end architectural projects, historic renovations where exposed hardware is not acceptable, healthcare corridors where cleaning staff cannot trap dirt behind visible closer bodies, and aluminum storefront doors where the closer must fit within the narrow tube frame. The 2010, 5010, 2030, 5030, 6030, 3030, and 3130 Series are all overhead concealed.

LCN 1000 Series Surface Closers: 1260 and 1460

The LCN 1000 Series contains LCN's most versatile surface-mounted closers. All standard 1000 Series models are universal: they install on either hand of door and in regular arm, parallel arm, or top jamb configurations without specifying handing at order time. This universality is the primary specification advantage over the 4000 Series (which requires handing specification on most models) and is why the 1000 Series appears so frequently on quick-turn projects and retrofit applications.

LCN 1000 Series Parts Reference

The LCN Cover Part Number Convention: Series + -72

The LCN plastic cover part number follows a consistent convention across all surface-mounted series: the model series number followed by -72. The 1460 cover is 1460-72. The 4040 cover is 4040-72. The 4020 cover is 4020-72. The 4110 cover is 4110-72. This convention applies across all standard surface-mounted LCN series and eliminates the need to look up the cover part number separately when you know the closer series. Not all LCN closers have the same shape cover, so even though the naming convention is consistent, the physical cover is series-specific and cannot be substituted between series.

The Green Dial Spring Adjustment on the 1460

The LCN 1460 Series features the patented Green Dial spring power adjustment system. Unlike older LCN closer designs where spring power adjustment required the correct-size stamped cylinder from the factory, the Green Dial allows field adjustment of spring power from size 1 through size 6 without requiring a different cylinder. Turning the Green Dial clockwise increases spring power (heavier closing force). Counterclockwise decreases it. This field adjustment eliminates the need to order a replacement cylinder when the spring power setting needs to change after installation, for example when a door adds a gasket that increases resistance and needs more closing force to latch reliably.

Arm Cross-Compatibility: What Works Where

LCN closer arms are machined to the specific spindle dimensions of each closer series. The spindle size and shape differs across models. The spindle on the 1260 and 1460 is different from the spindle on the 4040XP. An arm ordered for the 1460 Series will not fit a 4040XP closer. The 3077 regular arm works on the 1260, 1460, 4010, 4020, and 4040 (non-XP) closers. It does not work on the 4040XP, 4110, 4040SE, or any overhead concealed series.

LCN 2010 and 5010 Series: Heavy-Duty Overhead Concealed for Institutional Applications

The LCN 2010 and 5010 Series are the heaviest-duty overhead concealed closers in the LCN catalog, specifically designed for institutional, high-traffic applications where complete concealment and maximum durability are both required. Hospitals, government buildings, correctional facilities, and university buildings with high daily cycle counts and abuse resistance requirements are the typical 2010/5010 specification environments.

2010 Series: Concealed in Frame and Door

The 2010 Series conceals both the cylinder in the door frame and the track in the door. From the finished side, the door shows only a clean face with no visible hardware at all when the door is in the closed position. This complete visual concealment is the defining specification feature of the 2010 and is why it is used in high-end institutional applications where exposed hardware is not acceptable.

The 2010 requires a mortise pocket in the door for the track and a mortise pocket in the frame for the cylinder. This door preparation requirement means the 2010 must be specified during door manufacturing, not retrofitted to standard doors without significant field work.

5010 Series: Cylinder Concealed in Frame, Double-Lever Arm Exposed

The 5010 shares the 2010's cylinder concealed in the door frame but uses an exposed double-lever arm on the door face rather than a concealed track. The exposed arm makes field service considerably easier: the arm is accessible without removing the door from the frame. The 5010 is the correct choice when concealment of the cylinder is required for security reasons (as in correctional applications where an exposed closer body could be defeated) but a fully concealed track is not required by the specification.

Both the 2010 and 5010 meet ANSI/BHMA A156.4 Grade 1 and ADA reduced opening force requirements. Both are designed for aluminum, hollow metal, or wood doors and frames and can be used with hinge or pivot mounted doors.

LCN 2030, 5030, and 6030 Pacer Series: Overhead Concealed for Aluminum Transoms

The LCN Pacer 2030/5030/6030 Series is the overhead concealed closer solution for narrow aluminum transom frames. The minimum transom width for Pacer concealment is 1-3/4 inches: the same minimum stile width that defines aluminum storefront hardware throughout the commercial door hardware industry. This is not coincidental. The Pacer was engineered to fit inside standard aluminum storefront frame sections, which is why it is the standard specification for overhead concealed closers on aluminum commercial entries.

2030, 5030, and 6030 Differences

The 5030 Series arm joints and shoe adapt to uneven trim, making it the preferred choice on aluminum storefront installations where the frame alignment is not perfectly consistent. On a standard aluminum door with a precisely manufactured frame, the 2030 concealed track arm is typically preferred for aesthetic reasons. On doors where field conditions introduce uneven trim, the 5030's adaptive arm joints accommodate the variance.

Pacer Series Construction

All three Pacer series use the same internal construction: a cast iron cylinder, a one-piece forged steel piston, a high-efficiency full-complement low-friction bearing, tamper-resistant regulating screws, and all-weather fluid. The spring power and latch speed adjustments are independent for either swing direction on all three series. The backcheck and general speed adjustments are common for both swings. All three are UL and cUL listed for self-closing doors without hold-open and carry a 15-year limited warranty.

LCN 3030 and 3130 Series: Overhead Concealed for Interior Doors

The LCN 3030 and 3130 Series are overhead concealed closers specifically designed for interior doors in medium- to high-traffic areas, mounted within the standard 1-3/4 inch interior door thickness. Where the 2030/5030/6030 Pacer fits in aluminum transom frames, the 3030/3130 fits within the door itself.

3030 vs 3130: Arm Style and Concealment Level

The 3030 Series conceals the cylinder in the door but uses an exposed double-lever arm on the door face. The arm joints adapt to uneven trim. The 3030 uses a non-handed cylinder, simplifying parts ordering when handing is uncertain.

The 3130 Series achieves complete concealment with both the cylinder in the door and a single-lever arm connected to a track and roller assembly that is also concealed within the door when the door is in the closed position. The only visible component on a 3130 installation is the roller in the track, and this is visible only when the door is open. From the closed-door view, there is no visible hardware at all. The 3130 uses a handed cylinder (right hand or left hand must be specified at ordering time).

3130 Track Roller: The Critical Wear Component

The 3130 track roller assembly is the most frequently replaced component on the 3130 Series. The roller travels in the track on every door cycle and wears over years of use. The standard track roller is part 3130-3034 (standard closing, aluminum finish). The hold-open track roller is part 3130-3034H (allows the door to hold open at a specified angle). When the door begins to not close fully or drifts open from a previously reliable closing cycle, the track roller is the first replacement candidate before diagnosing the cylinder.

3030 and 3130 Sizing

Both the 3030 and 3130 are sized closers, meaning the cylinder size must be specified at order time rather than being field-adjusted like the 1460's Green Dial system. The size number refers to the spring power, which determines the door width the closer can control. The 3130 size designation uses a single digit suffix: 3131 is size 1, 3132 is size 2, 3133 is size 3. Size 3 covers interior doors to 3 feet 2 inches. For a door wider than 3 feet 2 inches, a larger size must be specified at the time of ordering. Getting the size wrong means returning the closer for the correct size cylinder.

Overhead Concealed Closer Comparison: Which Series for Which Application

What Fails First on These LCN Closers

Surface Mounted 1000 Series

Arm screw 159: The most common service item on any 1000 Series installation. As the closer cycles thousands of times, the vibration from the arm's operating forces loosens the arm screw. When loose, the arm spins on the spindle instead of transmitting spring force to the door. The door then either fails to close fully or slams shut. Checking and retorquing the arm screw as a maintenance item eliminates most 1000 Series service calls.

Cover damage: The 1000 Series plastic cover takes environmental and cleaning chemical exposure that cracks or discolors the cover over time. The cover (part 1260-72 or 1460-72) is a cosmetic replacement that requires no tool beyond a standard screwdriver. Always confirm the series before ordering the cover replacement.

Fluid leak: A surface-mounted LCN closer that is closing too fast and slamming despite adjustment attempts has almost certainly lost hydraulic fluid. Fluid loss makes the valve regulation system ineffective. A replacement cylinder assembly is the correct part, not additional valve adjustment. Continued adjustment on a leaking cylinder body does not restore controlled closing speed.

Overhead Concealed Series

3130 track roller: Progressive wear over high-cycle use. Symptom: door that previously closed correctly now drifts open or does not fully close. Replace the track roller before diagnosing the cylinder.

2030/5030 roller assembly: The roller assembly in the Pacer series is the interface between the arm and the door. It can seize or develop play from aluminum oxide contamination on aluminum door surfaces. Annual lubrication of the roller assembly with a dry-film or silicone-based lubricant prevents most premature roller failures on 2030/5030 installations.

Arm joints on 5030 and 3030: The adaptive arm joints on the 5030 and 3030 contain a socket-and-ball mechanism that allows the arm to accommodate uneven trim. These joints can wear or corrode, losing the flexibility range that makes the adaptation possible. A 5030 or 3030 installation that begins to bind or produce door closing resistance despite correct cylinder adjustment usually has worn arm joints requiring arm replacement.

Browse the complete LCN parts catalog at SecurityParts.com for all 1000 Series, 2010/5010, 2030/5030/6030, and 3030/3130 components. For the full LCN door closer catalog including the 4040XP, Sentronic, and Smoothee series, browse the commercial door closer parts catalog. Pre-order support is at 845-935-0301 or the contact page.

Related Parts and Products at Security Parts

LCN door closers appear on every fire-rated egress door alongside exit devices and electric strikes. The same building that uses 1460 Series surface closers on office doors uses 2030 Pacer closers on aluminum storefront entries and 3130 concealed closers on high-end architectural interior doors.

For Von Duprin and Falcon exit device parts on egress doors in the same building, browse the exit devices catalog. For Von Duprin electric strike parts on controlled entry doors in the same facility, browse the electric strikes catalog. For Von Duprin complete exit device and alarm parts, browse the Von Duprin catalog. For Schlage ND and ALX Series cylindrical lock parts on secured interior doors in the same building, browse the cylindrical locks catalog. For Schlage L Series mortise lock parts on high-security entries in the same facility, browse the mortise locks catalog.

Browse the complete all products and parts catalog to source LCN, Schlage, Von Duprin, Falcon, and Detex hardware across the complete facility in a single session.