Corbin Russwin 487K19 7-Pin X ...
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$89.00
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Corbin Russwin 487K19 7-Pin X Class Mortise Cylinder Plug with 27B1 Keyway, 1-3/4 in., Satin Brass

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Model: 487K19 27B1 626

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

$89.00
$77.42
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Corbin Russwin 487K19 7-Pin X Class Mortise Cylinder Plug with 27B1 Keyway

The Corbin Russwin 487K19 is a 7-Pin X Class plug designed for 1-3/4" mortise cylinder applications, featuring the 27B1 keyway and finished in Satin Brass. This precision-engineered replacement cylinder plug is an authentic Corbin Russwin cylinder part, purpose-built for commercial mechanical lock systems where reliable, consistent keying performance is essential. Ideal for facilities requiring accurate key control and seamless integration with existing Corbin Russwin mortise hardware.

Key Features

  • 7-Pin X Class Configuration: Features a 7-pin X Class plug design for enhanced key control and security in commercial mortise cylinder applications.
  • 1-3/4" Mortise Format: Precisely sized at 1-3/4" to fit standard mortise cylinder housings, ensuring accurate and reliable installation in compatible hardware.
  • 27B1 Keyway: Factory-specified 27B1 keyway provides controlled key interchange and compatibility with Corbin Russwin 27B1-series key profiles.
  • Satin Brass Finish: Satin Brass finish delivers a refined, professional appearance consistent with commercial door hardware aesthetics.
  • Authentic Corbin Russwin Cylinder Part: Genuine OEM replacement component engineered to exact Corbin Russwin specifications for direct, drop-in compatibility.
  • Commercial-Grade Construction: Built to the performance and durability standards expected of Corbin Russwin mechanical lock components in high-demand commercial environments.

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: 487K19 27B1
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

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

Why Corbin Russwin 487K19?

Corbin Russwin cylinder parts are manufactured to the precise tolerances required for consistent, dependable performance in commercial mechanical lock systems. The 487K19 7-Pin X Class plug upholds the engineering standards Corbin Russwin is known for, making it the trusted choice for facilities managers and security professionals maintaining or upgrading mortise cylinder installations with authentic, OEM-quality components.

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:
487K19 27B1
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 487K19 27B1 626 – Frequently Asked Questions

1) Will a 27B1 keyway plug work with my existing Corbin Russwin keys?
Only if your system is keyed in the 27B1 profile. The 487K19 plug is factory cut to the 27B1 keyway, so it accepts Corbin Russwin 27B1-series key profiles and nothing else. If your building is keyed to a different Corbin Russwin keyway, this plug will not take your keys and you need the plug in your own keyway section.
2) Can I use this plug in a rim cylinder or a key-in-lever cylinder?
No. The 487K19 plug is dimensioned for 1-3/4 inch mortise cylinder housings, so it does not drop into rim or key-in-knob/lever cylinders. For rim work, look at a rim cylinder like the Schlage 20-022 with horizontal tailpiece cam; for knob or lever replacement, the Kaba Ilco 1599 key-in-knob cylinder or Falcon A23161-05 G key-in-lever cylinder are the right formats.
3) I need a complete mortise cylinder, not just the plug - what should I order instead of the Corbin Russwin 487K19?
The 487K19 is a replacement cylinder plug, the keyed core barrel that carries the 27B1 keyway - it is not a whole cylinder housing. If the job needs a complete mortise cylinder, 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. Both arrive as finished cylinders you thread into the lock case; the 487K19 assumes you already have a Corbin Russwin mortise housing on the door and are rebuilding or rekeying it.
4) My facility keys to Schlage C, not Corbin Russwin 27B1 - is the 487K19 plug usable?
No. The 487K19 plug is machined for the Corbin Russwin 27B1 keyway, so it only accepts 27B1-profile keys and only makes sense in a system already keyed that way. For a Schlage C system, the Detex MC65 is a six-pin mortise cylinder in the Schlage C keyway, and the Schlage 20-057-C is a full size interchangeable core in the C keyway. Keyway is the one dimension that cannot be adapted in the field - match it before you match anything else.
5) Will the 487K19 work in an exit device that takes a rim cylinder?
No - it is a plug for a 1-3/4 inch mortise cylinder format, which threads into a mortise lock case rather than mounting behind a rim device. Rim applications call for a rim cylinder: the Schlage 20-021 is a six-pin rim cylinder with a vertical tailpiece cam and the 20-022 is the same cylinder with a horizontal cam, with the cam orientation chosen to match the device. Mortise and rim cylinders are not interchangeable regardless of pin count or finish.
6) Why choose a 7-pin plug over a 6-pin cylinder for a commercial masterkey system?
The extra pin chamber gives more room for master keying levels and tighter key control, which is why the 487K19 is built as a 7-pin X Class plug for commercial mechanical lock systems. Most commercial cylinders we carry are 6-pin (the Detex MC65 and the Schlage 20-021 rim cylinder, for example), so a 7-pin plug is the choice when the facility's key control schedule demands it. BEST also offers a 7-pin option in the 1CDF drill resistant interchangeable core.
7) I manage a building with Corbin Russwin mortise locks. Is this the part to keep on the shelf for rekeying?
Yes, if your mortise cylinders are 1-3/4 inch and keyed 27B1. The 487K19 is a genuine Corbin Russwin cylinder part built for drop-in replacement in matching mortise hardware, which is what you want when you are rebuilding or rekeying cylinders across offices, schools, healthcare, government buildings, retail, warehouses and multi-tenant residential rather than swapping whole locks.
8) If I want interchangeable cores instead of rebuilding plugs, what should I look at?
A plug like the 487K19 is rebuilt at the bench, one cylinder at a time. If you would rather pull and swap cores in the field, move to an interchangeable core platform: BEST offers the 1CB 150 Series interchangeable core, the 1C Series 5-pin standard core, and the 1CDF drill resistant 7-pin core, and Schlage offers the 20-057 full size interchangeable core rim cylinder. Those are a different keying system, so they are a facility-wide decision, not a one-door substitution.
9) We rekey often - is a 7-pin plug like the 487K19 the right approach or should we move to interchangeable cores?
The 487K19 is a fixed 7-pin X Class plug: rekeying means pinning the plug at the bench, which suits facilities standardizing on Corbin Russwin 27B1 key control. If you would rather swap a core by hand with a control key, the BEST 1CB is a 150 Series interchangeable core, the BEST 1CDF is a drill-resistant patented 7-pin interchangeable core in brass, and the Schlage 20-057 is a six-pin full size interchangeable core rim cylinder with a convertible tailpiece cam. Those are a different hardware architecture, so the housings on the doors have to accept a core rather than a threaded mortise cylinder.
10) What is the difference between the 487K19 plug and the key-in-knob cylinders like the Kaba Ilco 1539 or 1599?
The 487K19 is a mortise-format plug carrying the Corbin Russwin 27B1 keyway, intended for commercial mortise cylinder housings. The Kaba Ilco 1539 is a key-in-knob and lever universal cylinder and the 1599 is a key-in-knob replacement cylinder - both drop into the knob or lever itself, not into a mortise lock case. The Kaba Ilco 1579 is the knob and lever cylinder built for Sargent hardware. Pick by where the cylinder sits in the lock, since a knob cylinder will not thread into a mortise body.
11) For an aluminum storefront with an Adams Rite deadlock, is the Corbin Russwin 487K19 the cylinder part I need?
It is not. The 487K19 is a plug for a Corbin Russwin mortise cylinder in commercial mortise hardware. Adams Rite narrow stile deadlocks take their own cylinder hardware: the 4024 cylinder pull mounts with a trim plate for MS1847 deadlock and deadlatch systems, the 4025 is a five-pin tumbler cylinder pull using through-screws for the same MS1847, and the 4026 is the five-pin cylinder pull for the 5017 wood door deadlock. Confirm which deadlock body is in the door before ordering.
12) Is a 5-pin cylinder core an acceptable substitute for the 7-pin 487K19 plug?
Only if the system it serves is a 5-pin system. The 487K19 is a 7-pin X Class plug, and pin count has to match the keying system and the bitting on the existing keys. Comparable 5-pin parts include the BEST 1C standard 5-pin cylinder core and the Adams Rite 4036 mortise cylinder with five-pin security; the BEST 1CDF is a 7-pin interchangeable core if you need the higher pin count in a core format. Dropping from 7 pins to 5 changes the master keying capacity of the system, so verify with whoever holds the key schedule.
13) We use Emtek and Kwikset residential hardware in some units - does the 487K19 plug fit any of it?
No. The 487K19 is a commercial mortise cylinder plug for Corbin Russwin hardware. Residential handleset and deadbolt retrofits call for cylinders built to those tailpieces: the Medeco 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the Medeco 1065244 is a 5-pin rim lazy motion cylinder supplied with an Emtek tailpiece, the Medeco 1065140 is a 5-pin retrofit for Arrow JL interconnected locks and Emtek handleset and deadbolt outside cylinders, and the Emtek CY4 is Emtek's own cylinder sold each. Match the tailpiece and the lock brand, not the finish.
14) Our building is mixed Corbin Russwin and Falcon - can one cylinder part cover both?
Not with a single part. The 487K19 plug is keyed to the Corbin Russwin 27B1 profile and goes into Corbin Russwin mortise cylinder housings. Falcon key-in-lever openings take the Falcon A23161-05 G, a 6-pin cylinder in the G keyway from the RU/T series, supplied keyed different with two cut keys. Standardizing a mixed building means choosing one keyway family and replacing cylinders on the other side of the house, not finding a part that serves both.
15) We need a non-functioning cylinder just to fill a hole - can we use a cheaper plug like the 487K19?
The 487K19 is a working keyed plug built around the 27B1 keyway, so it is specified when the opening actually has to operate on a key. Where the hardware needs a cylinder body present but no keyed function, the BEST 12E Series dummy rim cylinder at 1-5/32 inch diameter is the purpose-built part. Use the keyed plug only where key control is part of the requirement.
16) Does the 487K19 come in the same finishes as other commercial cylinder parts we stock?
The Corbin Russwin 487K19 plug is offered in 606 satin brass and 626 satin chrome, the two finishes most commonly specified on commercial cylinder hardware. Among comparable cylinder parts, the Schlage 20-057-C full size interchangeable core is listed in 643E aged bronze, so if the trim on the opening is a darker bronze the cylinder face will not match a satin brass or satin chrome plug.
17) What cylinder do I use for a deadbolt if the 487K19 is mortise only?
For deadbolt applications, the Kaba Ilco 1549 is a key-in-deadbolt cylinder and the Kaba Ilco 1539 is a universal key-in-knob and lever cylinder, both catalogued for deadbolt function. The Corbin Russwin 487K19 plug is sized to the 1-3/4 inch mortise cylinder format and belongs in a mortise lock case, so it will not serve a bored deadbolt.
How fast can I get the Corbin Russwin 487K19 27B1 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 487K19 27B1 626 come with a warranty?
Absolutely. The Corbin Russwin 487K19 27B1 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 487K19 27B1 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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