Corbin Russwin 487K17 7-Pin X ...
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$67.00
$61.58
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Corbin Russwin 487K17 7-Pin X Class Plug for 1-1/2" Mortise Cylinders, 77A2 Keyway, Satin Brass

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Model: 487K17 77A2 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 Plug for 1-1/2" Mortise Cylinders with 77A2 Keyway in Satin Brass

The Corbin Russwin 487K17 is a 7-Pin X Class replacement plug engineered for 1-1/2" mortise cylinder applications. Featuring the 77A2 keyway, this precision-machined component is finished in satin brass and is designed to integrate seamlessly with compatible Corbin Russwin mortise cylinder assemblies. Intended for commercial-grade door hardware, this replacement part maintains the performance and security standards expected of Corbin Russwin cylinder products.

Key Features

  • 7-Pin X Class Configuration: Features a 7-pin X Class plug design for enhanced security and key control in commercial locking 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.
  • 77A2 Keyway: Equipped with the 77A2 keyway specification, ensuring proper key fit and compatibility within the Corbin Russwin keying system.
  • Satin Brass Finish: Delivered in a satin brass finish that complements a wide range of commercial hardware trim and door lever finishes.
  • Genuine Corbin Russwin Component: Manufactured as an authentic Corbin Russwin cylinder part, maintaining OEM-level fit, function, and durability for replacement and service applications.
  • Commercial-Grade Application: Designed specifically for commercial door hardware environments where consistent cylinder performance and key security are essential.

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 77A2
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties

Why Corbin Russwin 487K17?

Corbin Russwin cylinder components are built to exacting commercial standards, delivering reliable key control and consistent operation in demanding door hardware applications. The 487K17 7-Pin X Class plug is a genuine OEM replacement part, ensuring precise fitment and maintaining the integrity of your existing Corbin Russwin mortise cylinder installations. For facilities professionals and locksmiths requiring dependable, specification-grade replacement components, the 487K17 delivers trusted Corbin Russwin engineering.

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 77A2
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 487K17 77A2 626 – Frequently Asked Questions

1) What exactly is the Corbin Russwin 487K17 part, a whole cylinder or just the plug?
It's the plug only, not a complete cylinder. The 487K17 is a 7-pin X Class replacement plug sized for 1-1/2 inch Corbin Russwin mortise cylinder housings, cut for the 77A2 keyway. You install it into an existing compatible Corbin Russwin mortise cylinder shell, so if you need a complete keyed cylinder you want the full mortise cylinder assembly instead of this part.
2) Will a 487K17 plug work in my Corbin Russwin cylinder if my system is keyed to a different keyway?
No. The plug is machined for the 77A2 keyway, so it only accepts 77A2 keys and only drops into a keying system using that keyway. If your building is keyed on another Corbin Russwin keyway, order the matching plug for that keyway or your existing keys will not enter.
3) Does the 487K17 fit a 1-1/8 inch mortise cylinder?
No. This plug is sized for 1-1/2 inch mortise cylinder housings. A 1-1/8 inch cylinder uses a shorter plug, and the wrong length will not seat or turn correctly. If you actually need a short commercial mortise cylinder, something like the Detex MC65 is a 1-1/8 inch 6-pin mortise cylinder, though it is a Schlage C keyway part rather than Corbin Russwin 77A2.
4) If I need a complete mortise cylinder rather than just a replacement plug, what should I order instead of the Corbin Russwin 487K17?
The 487K17 is a 7-pin X Class replacement plug for 1-1/2 inch mortise cylinders with the 77A2 keyway - it is the plug alone, not a housing. If you need a whole mortise cylinder, the Detex MC65 is a 1-1/8 inch 6-pin commercial mortise cylinder in the Schlage C keyway, and the Adams Rite 4036 is a Grade 1 five-pin mortise cylinder from the 4036 Series. Both of those arrive as assembled cylinders; neither uses the Corbin Russwin 77A2 keyway, so they key to their own systems rather than an existing Corbin Russwin master key plan.
5) We want to rekey doors without pulling cylinders. Is the Corbin Russwin 487K17 the right approach, or is there an interchangeable core option?
The 487K17 is a mortise cylinder plug, so swapping it means servicing the cylinder itself at the bench. If you want to change keying by pulling a core with a control key, look at interchangeable core products instead: the BEST 1CB is a 1CB Series 150 interchangeable core cylinder, the BEST 1CDF is a drill-resistant patented 7-pin brass interchangeable core in the 150 Series, and the BEST 1C5 is a standard 5-pin core. Schlage's 20-057 is a 6-pin full size interchangeable core rim cylinder with a convertible tailpiece cam, and the 20-057-C is an FSIC core in the C keyway. These are separate keying systems from the Corbin Russwin 77A2 keyway the 487K17 uses.
6) What finishes does the Corbin Russwin 487K17 plug come in, and will it match my existing trim?
Two finishes: 606 satin brass and 626 satin chrome. Pick the one that matches the cylinder collar and lever trim already on the door. On a building standardized to satin chrome hardware, 626 is the match; 606 satin brass pairs with brass trim.
7) Why would a locksmith choose a 7-pin X Class plug over a standard 6-pin?
The seventh pin chamber and the X Class configuration give tighter key control and more master keying capacity, which is what facilities want when they run a keyed system across many doors. It also means the plug must be pinned and keyed to your existing 7-pin X Class system; it is not a drop-in for a 6-pin Corbin Russwin cylinder.
8) I need a replaceable core instead of a pinned plug so my staff can rekey doors themselves. What should I look at?
A pinned plug like the 487K17 has to be taken apart and repinned by a locksmith. If you want field-rekeyable key control, an interchangeable core system is the better route: BEST offers the 1C Series standard 5-pin core, the Peaks 1CB 150 Series core, and the 1CDF drill-resistant patented 7-pin brass core, and Schlage offers the 20-057 full-size interchangeable core rim cylinder. Those let you pull and swap a core with a control key instead of servicing the cylinder.
9) Can I use the 487K17 in a rim cylinder or an exit device rim application?
No. This plug is built to the 1-1/2 inch mortise cylinder format, which threads into a mortise lock or mortise-prep housing. Rim applications take a rim cylinder with a tailpiece, for example the Schlage 20-021 with a vertical tailpiece cam or the 20-022 with a horizontal cam. Those are separate parts and the mortise plug will not substitute.
10) Do I need anything else besides the 487K17 plug to finish the repair?
You need the existing 1-1/2 inch Corbin Russwin mortise cylinder shell to receive it, plus pins and springs and cut keys to your 77A2 system unless the plug is being keyed to an existing master. The plug alone does not include the housing, cam, or collar, so plan on reusing those from the cylinder you are servicing.
11) Will the Corbin Russwin 487K17 work in a rim cylinder application?
No. The 487K17 plug is sized for 1-1/2 inch mortise cylinder housings, which thread into a mortise lock case. Rim cylinders mount through the door behind a rim exit device or rim lock and drive a tailpiece. For rim applications, the Schlage 20-021 is a 6-pin rim cylinder with a vertical tailpiece cam and the 20-022 is the same cylinder with a horizontal tailpiece cam; the BEST 12E Series dummy rim cylinder at 1-5/32 inch diameter covers non-keyed rim openings.
12) The door is a key-in-lever or key-in-knob lockset, not a mortise lock. What replaces the cylinder there?
The Corbin Russwin 487K17 plug fits 1-1/2 inch mortise cylinders and will not go into a knob or lever lockset. For those, Kaba Ilco offers the 1539 Series key-in-knob/lever universal cylinder, the 1599 key-in-knob replacement cylinder, and the 1579 knob and lever cylinder made for Sargent locks. Falcon's A23161-05 G is a key-in-lever cylinder for RU/T series with a 6-pin G keyway, supplied keyed different with two cut keys.
13) We have aluminum storefront doors with Adams Rite deadlocks. Does the Corbin Russwin 487K17 apply?
The 487K17 is a plug for 1-1/2 inch Corbin Russwin mortise cylinders in the 77A2 keyway, which is not the cylinder format used in an Adams Rite narrow stile deadlock. For MS1847 deadlock and deadlatch openings, the Adams Rite 4024 cylinder pull mounts with a trim plate and the 4025 is a five pin tumbler cylinder pull that mounts with through-screws. On wood doors with the Adams Rite 5017 deadlock or deadlatch, the 4026 five pin tumbler cylinder pull is the matching part.
14) Is there a higher-security alternative if I am replacing cylinder guts anyway?
The 487K17 is a 7-pin X Class plug, a restricted Corbin Russwin key control platform in the 77A2 keyway. If you are open to changing key systems, the BEST 1CDF is a drill-resistant patented 7-pin brass interchangeable core in the 150 Series, which combines patented key control with core-swap rekeying. Medeco also offers retrofit cylinders such as the 1065140 5-pin cylinder for Arrow JL interconnected locks and Emtek handleset and deadbolt outside cylinders. Note that each of these is a distinct keyway family, so they will not operate on an existing 77A2 master key system.
15) Is the 487K17 suitable for high-traffic commercial buildings or is it a residential part?
It's a commercial part. Corbin Russwin lists it as commercial-grade for office buildings, schools, healthcare, retail, government facilities, warehouses, and multi-tenant residential where keyed cylinder service is routine. It is a genuine OEM component, so it keeps the fit and function of the original cylinder when you rebuild rather than replace.
16) Does the finish choice on the 487K17 change what it fits?
No. The 487K17 plug is offered in 606 satin brass and 626 satin chrome, and the finish affects only the appearance of the exposed plug face against surrounding trim. The 1-1/2 inch mortise cylinder sizing, 7-pin X Class configuration, and 77A2 keyway are the same in either finish, so compatibility is driven by the cylinder housing and keyway, not the plated finish.
How fast can I get the Corbin Russwin 487K17 77A2 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 77A2 626 come with a warranty?
Absolutely. The Corbin Russwin 487K17 77A2 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 77A2 626?
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
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