Corbin Russwin 487K17 7-Pin X ...
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$67.00
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Corbin Russwin 487K17 7-Pin X Class Mortise Cylinder Plug with 57A1 Keyway, 1-1/2" Satin Brass

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Model: 487K17 57A1 626

In Stock (leaves warehouse same day if ordered before 3pm ET)

$67.00
$61.58
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Corbin Russwin 487K17 7-Pin X Class Mortise Cylinder Plug with 57A1 Keyway in Satin Brass

The Corbin Russwin 487K17 is a 7-Pin X Class replacement plug designed for 1-1/2" mortise cylinder applications. Featuring the 57A1 keyway and a Satin Brass finish, this precision-engineered cylinder plug is a genuine Corbin Russwin component built for commercial-grade mechanical lock systems. Designed as a direct replacement part for compatible Corbin Russwin mortise cylinders, it ensures proper key control and reliable pin tumbler operation in demanding institutional and commercial environments.

Key Features

  • 7-Pin X Class Configuration: Seven-pin tumbler layout with X Class plug design provides enhanced key control and security for commercial mortise cylinder applications.
  • 1-1/2" Mortise Cylinder Format: Precisely sized at 1-1/2" for direct compatibility with standard mortise cylinder housings used in commercial door hardware.
  • 57A1 Keyway: Specific 57A1 keyway profile ensures controlled key duplication and compatibility with Corbin Russwin keying systems.
  • Satin Brass Finish: Factory-applied Satin Brass finish coordinates with complementary Corbin Russwin hardware and provides a professional commercial appearance.
  • Genuine Corbin Russwin Cylinder Part: An authentic OEM replacement component engineered to factory specifications for reliable fit and function within Corbin Russwin mortise lock systems.
  • Commercial-Grade Construction: Built to the quality standards of Corbin Russwin's cylinder product line, suitable for high-use commercial and institutional door applications.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Cylinders
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: 487K17 57A1
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities and Schools
  • Healthcare Institutions and Hospitals
  • Government and Municipal Buildings
  • Retail and Hospitality Establishments
  • Multi-Tenant Residential and Mixed-Use Properties
  • Industrial and Institutional Facilities

Why Corbin Russwin 487K17?

Corbin Russwin cylinder components are engineered to exacting factory standards, ensuring that replacement plugs like the 487K17 deliver the same fit, function, and key control as the original installation. With a 7-pin X Class configuration and a dedicated 57A1 keyway, this plug maintains the integrity of your keying system in commercial-grade mortise lock applications where precision and consistency are essential.

Manufacturer Resources

Product Specs

Department:
Door Hardware
Product Category:
Mechanical Locks
Product Group:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Cylinders
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
487K17 57A1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 487K17 57A1 626 – Frequently Asked Questions

1) What does the 57A1 keyway mean for keying this plug into my building's system?
57A1 is a specific Corbin Russwin keyway profile, and the plug only accepts keys cut on that profile. That is what keeps the rest of your masterkey system intact when you swap a plug: order 57A1 to stay on the same keyway as the doors around it, and your existing change keys and master keys continue to operate. It also means controlled duplication, since the key blank is tied to that profile.
2) If I need a complete mortise cylinder rather than just a replacement plug, what should I order instead of the Corbin Russwin 487K17?
The Corbin Russwin 487K17 is a replacement plug for 1-1/2 inch mortise cylinder applications, not a full cylinder assembly, so it only helps if the existing housing stays in the door. When the whole cylinder is being replaced, a complete mortise cylinder is the right item: the Adams Rite 4036 is a Grade 1 mortise cylinder with five-pin security, and the Detex MC65 is a 1-1/8 inch six-pin mortise cylinder cut to the Schlage C keyway. Note that neither carries the Corbin Russwin 57A1 keyway, so a new cylinder means the opening comes off your existing 57A1 key system unless it is keyed to match separately.
3) Is a rim cylinder like the Schlage 20-021 a substitute for the Corbin Russwin 487K17?
No. The 487K17 is a 7-pin X Class plug for 1-1/2 inch mortise cylinder housings used in Corbin Russwin mortise lock systems. The Schlage 20-021 and 20-022 are rim cylinders that drive an exit device or rim lock through a tailpiece cam, the 20-021 with a vertical cam and the 20-022 with a horizontal cam. Rim and mortise cylinders mount to different preps and are not interchangeable, so a rim cylinder will not go into a mortise housing.
4) We want to be able to swap cores without disassembling the cylinder. What is the alternative to the 487K17 plug?
The 487K17 is a fixed plug replaced inside the mortise cylinder body, so rekeying means taking the cylinder apart. If the goal is field-swappable cores, look at interchangeable core products instead: the BEST 1CB is a 150 Series interchangeable core cylinder, the BEST 1CDF is a drill-resistant patented interchangeable core in 7-pin brass, and the Schlage 20-057-C is a full size interchangeable core in the C keyway. Moving to an interchangeable core platform changes the cylinder housing and the key system, so it is a planned conversion rather than a drop-in for a 57A1 opening.
5) Does the 487K17 come in anything other than satin brass?
Two finishes are offered: 606 satin brass and 626 satin chrome. Pick the one that matches the cylinder collar and the lock trim already on the door, since the plug face is visible at the keyway.
6) Why choose a 7-pin plug instead of a 6-pin for a commercial building?
Seven chambers give more key differs and more room to build master key levels, which is why 7-pin X Class is the common choice in schools, hospitals and government buildings where one system covers hundreds of doors. Six-pin cylinders, like the Detex MC65 or the Schlage 20-021 rim cylinder, are typical on smaller systems. You cannot mix pin counts inside one plug: the 487K17 is a 7-pin part and has to be pinned as such.
7) If I want an interchangeable core system instead of replacing plugs, what should I be looking at?
A plug swap like the 487K17 means pulling the cylinder and re-pinning at the bench. If your goal is to rekey a door in seconds with a control key, an interchangeable core platform is the different approach: BEST offers the 1C 5-pin standard core, the 1CB Peaks 150 Series core, and the 1CDF drill-resistant patented 7-pin core, and Schlage offers the 20-057 full size interchangeable core rim cylinder. Those are a system decision, not a like-for-like substitute for a Corbin Russwin mortise plug.
8) Will a key-in-knob or key-in-lever cylinder work in place of the Corbin Russwin 487K17?
No. The 487K17 serves 1-1/2 inch mortise cylinder housings. Key-in-knob and key-in-lever cylinders are a different format entirely: the Kaba Ilco 1539 is a key-in-knob/lever universal cylinder, the Kaba Ilco 1579 is a knob and lever cylinder for Sargent locks, the Kaba Ilco 1599 is a key-in-knob replacement cylinder, and the Falcon A23161-05 G is a key-in-lever cylinder in the RU/T series six-pin G keyway. Those go into the knob or lever of a cylindrical lockset, not into a mortise lock case.
9) I need a cylinder for a Kwikset or Emtek residential deadbolt, not a commercial mortise lock. What should I look at instead of the 487K17?
The 487K17 is a commercial component built for Corbin Russwin mortise lock systems. For residential handleset and deadbolt retrofits, the Medeco rim-type cylinders are the fit: the Medeco 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1065244 is a 5-pin lazy motion rim cylinder with an Emtek tailpiece, the 1065140 is a 5-pin retrofit for Arrow JL interconnected locks and Emtek handleset and deadbolt outside cylinders, and the 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts. Emtek also lists the CY4 cylinder sold each.
10) Is the BEST 1C5 core an equivalent to the Corbin Russwin 487K17 plug?
They sit at the same point in a lock but belong to different systems. The 487K17 is a 7-pin X Class plug with the Corbin Russwin 57A1 keyway, sized for 1-1/2 inch mortise cylinder bodies. The BEST 1C5 is a standard 5-pin cylinder core from the Standard and Premium Cores line, which is a BEST interchangeable core figure eight format. Pin count, keyway and the housing each one drops into are different, so the 1C5 will not maintain a 57A1 key system.
11) What do I use when the opening needs a keyed pull on an aluminum storefront rather than a mortise cylinder plug?
The 487K17 addresses the plug inside an existing Corbin Russwin mortise cylinder and does nothing for door pull hardware. For storefront and narrow stile work, Adams Rite cylinder pulls cover that: the 4024 mounts with a trim plate for MS1847 deadlock and deadlatch systems, the 4025 is a five pin tumbler cylinder pull with through-screws for the same MS1847 family, and the 4026 is a five pin tumbler cylinder pull for wood door applications with the 5017 wood door deadlock and deadlatch.
12) Is this plug suitable for high-traffic commercial doors, or is it a residential part?
Commercial. The 487K17 is catalogued for commercial use and built to Corbin Russwin's cylinder standards for institutional openings, the sort of thing a property manager or MRO buyer swaps on office, school, healthcare, and multi-tenant residential doors when a keyway change or a compromised key is the issue rather than the lock itself.
13) We need a cylinder that fills the hole but does not key anything. Does the 487K17 do that?
No. The 487K17 is a working 7-pin X Class plug with a 57A1 keyway intended to keep a mortise cylinder in operation. When the opening only needs the appearance of a cylinder with no keyed function, a dummy cylinder is the correct part: the BEST 12E Series dummy rim cylinder has a 1-5/32 inch diameter and is a rim format, so confirm the prep in the door before ordering it against a mortise application.
14) Does the 487K17 come in a finish that matches satin chrome hardware, or do I need a different brand?
No need to change brands. The Corbin Russwin 487K17 7-Pin X Class mortise plug is offered in 606 Satin Brass and 626 Satin Chrome, so it can be matched to either brass or chrome trim on the same key system. Among comparable cylinders, the Schlage 20-057-C full size interchangeable core is listed in 643E Aged Bronze, a darker finish family if that is what the openings call for.
15) What is the difference between ordering the 487K17 plug and a Schlage 20-057 FSIC rim cylinder for an exit device?
They solve different problems. The 487K17 is a 7-pin X Class plug that restores key function inside a 1-1/2 inch Corbin Russwin mortise cylinder, keyed to the 57A1 keyway. The Schlage 20-057 is a 6-pin full size interchangeable core rim cylinder with a convertible tailpiece cam supplied with two keys, meant for rim-prepped devices where the core can be pulled and replaced later. Choose by the prep on the device and whether the site standard is a fixed plug or an interchangeable core.
16) For a deadbolt cylinder replacement, is the 487K17 the right part?
Only if the deadbolt is a Corbin Russwin mortise case using a 1-1/2 inch mortise cylinder, since the 487K17 replaces the plug inside that cylinder. For deadbolt cylinders in other platforms, the Kaba Ilco 1549 is a key-in-deadbolt cylinder listed for deadbolt function, and the Kaba Ilco 1539 universal cylinder is likewise listed for deadbolt function. Verify the lock case and keyway before substituting, because those cylinders do not carry the 57A1 profile.
How fast can I get the Corbin Russwin 487K17 57A1 626 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 Corbin Russwin 487K17 57A1 626 come with a warranty?
Absolutely. The Corbin Russwin 487K17 57A1 626 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 Corbin Russwin 487K17 57A1 626?
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