Stanley Security D-3550/D-4550 Hold-Open Track and Arm Set, Pull Side

It is the hold-open track and arm assembly for Stanley Security D-3550 and D-4550 series surface closers. The D4550 is Stanley's heavy duty closer with an R-14 silicon aluminum alloy cylinder body, and the family is built to take a range of standard and heavy duty arm configurations, this track and arm being one of them. Do not order it as a universal arm for another brand's closer body.

This Stanley part is arm hardware only, so if you are starting from bare door you need a complete closer. Among complete hold-open units, the Accentra 51 Series ships as a tri-packed hold open arm closer in sizes 1 through 6, and the Orca Hardware BHDC1958 hold open with parallel bracket is listed for 1-3/4 inch doors. If you want a track style pull side closer rather than a swing arm, the Corbin Russwin DC5230 comes with a slide track arm as standard, pull side mounting, for 1-3/4 inch doors.

No. The Stanley Security D-3550/D-4550 hold-open track and arm set is track hardware made for Stanley D-3550 and D-4550 closer bodies. LCN 1260 series arm parts such as the 1260-3049 hold open arm assembly belong to the LCN 1260 body, and the LCN 1261 is a light to medium duty closer in that 1260 Series. Arm and track hardware follows the closer family it was built for, so match the Stanley set to a Stanley body and the 1260 arms to a 1260 closer.

The Stanley Security D-3550/D-4550 hold-open track and arm set is pull side mounted arm and track hardware, not a complete closer body. If the opening needs the whole assembly with a hold-open function built in, the Accentra 51 Series carries a tri-packed hold open arm and the Orca Hardware BHDC1958HO/PA is a hold open door closer with a parallel bracket. Both come as a closer with the hold-open arm rather than as arm-and-track hardware for an existing D-3550 or D-4550 body.

The Stanley Security D-3550/D-4550 track and arm set is a hold-open configuration. Where a fire-rated or life-safety opening has to self-close every cycle, a non-hold-open assembly is the direction to go: the Orca Hardware BHDC1958RA/PA uses a tri-packed non-hold open arm, the Design Hardware 116 Series is a heavy duty closer with a tri-packed non-hold open arm, and the Accentra 2701 Series pairs a tri-packed non-hold open arm with the 2700 Series body.

The Stanley Security D-3550/D-4550 track and arm set mounts on the pull side. Two peers use the same side of the door with a track-type arm: the Corbin Russwin DC5230 is a Grade 1 surface closer with a slide track arm standard and pull side mounting for 1-3/4 inch doors, and the Dorma 8916-JT is a Grade 1 heavy duty surface closer with a jamb track, frame face mounting on the pull side and an adjustable size 1 through 6 spring.

The Stanley hold-open track and arm set is listed as ADA compliant and is a commercial rated assembly. On a barrier free opening the opening force is set at the closer body, not the arm, so the arm choice does not by itself put you out of compliance.

Yes for the Stanley D-3550/D-4550 platform, which runs all-weather hydraulic fluid so closing speed stays consistent through temperature swings. One caution that has nothing to do with the fluid: a mechanical hold-open on an exterior door parks it wide open in wind, so on a windy elevation many specifiers stay with a non-hold-open arm and use a separate overhead stop.

Pick the hold-open track arm when staff need the door to stand open on its own, receiving areas, classrooms during passing periods, janitorial routes. The track design also keeps the arm tight to the door face rather than projecting into the opening like a regular double lever arm. Choose a plain non-hold-open arm on anything that must self close every cycle, which includes rated openings and most exterior doors.

The D-4550 Series is Stanley's heavy duty closer for institutional applications, and the hold-open track and arm set is sized to it. On a low traffic interior door, lighter peers include the LCN 1250 Series light duty closer with sizes 1 through 5 and all-weather fluid, the BEST SL6000 Series Grade 1 light duty closer with adjustable spring sizes, and the Falcon SC91A Series light duty cast aluminum closer, which is Grade 3 rather than Grade 1. Like the Stanley set, the LCN 1250 uses all-weather fluid.

The Stanley Security D-3550/D-4550 hold-open track and arm set is a pull side arm. For an opening where the arm has to sit on the push side, a tri-mount closer covers regular, parallel and top jamb positions: the Dormakaba 8616 AF86P FC SNB1 is a Grade 1 heavy duty closer with a flat arm non-hold open arm supplied tri-pack, the Norton Rixson 1600 Series aluminum storefront closer is Grade 1 heavy duty with tri-style mounting, and the Dexter DCH4000 Series is a Grade 1 surface closer tri-mounted for regular, parallel or top jamb.

689 aluminum painted, in a powder coat finish. That is the standard sprayed aluminum look that matches most commercial closer bodies on the same opening, so an arm swap on an existing 689 closer will not stand out.

Iron is the listed substrate on the track and arm set, finished in powder coat. That matters on a hold-open, where the arm and shoe absorb the shock every time someone walks the door back into the stop position.

Not directly. The Stanley Security D-3550/D-4550 item is pull side track and arm hardware, while those peers are complete closers: the Cal-Royal 500S is a Grade 1 barrier free closer with adjustable back-check, the Cal-Royal 700S is a Grade 1 dual valve sized closer with an adjustable tube arm, and the Arrow DCN325 is a Grade 1 surface closer supplied less cover with a regular and parallel arm tri-pack and adjustable spring size 1 through 6. Each of those replaces the closer entirely rather than changing the arm on a D-3550 or D-4550.