BEST 5C Series High Security 7...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$94.00
$80.01
BEST BEST 5C Series High Security 7-Pin Cylinder Core BES-5C7

BEST 5C Series High Security 7-Pin Cylinder Core

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Model: BES-5C7A1605
From the Standard Cores Collection
$94.00
$80.01
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$94.00
$80.01
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BEST 5C Series High Security 7-Pin Cylinder Core

Professional High Security Cylinder Core Solution

The BEST 5C Series High Security 7-Pin Cylinder Core delivers professional-grade security for demanding commercial applications. This high security core requires long blade keys and is only compatible with high security mortise cylinders, providing enhanced protection for critical access points. Engineered to the same strict tolerances and high standards of excellence as BEST patented systems, this core ensures quality, durability and performance you can trust.

Professional Features & Benefits

  • High Security Design: 7-pin configuration with long blade key requirement provides enhanced security protection for critical applications.
  • Precision Manufacturing: Engineered to the same strict tolerances and high standards of excellence as BEST patented systems for reliable performance.
  • Specialized Compatibility: Designed specifically for high security mortise cylinders, ensuring proper integration with compatible hardware.
  • Commercial-Grade Durability: BEST Standard key systems offer proven durability and performance in a wide range of commercial applications.
  • Masterkey System Support: Provides precise, carefully managed masterkey applications that make BEST an industry leader for masterkeying solutions.
  • Continued System Support: BEST actively supports new and existing Standard systems for long-term reliability and service.

Technical Specifications

  • Collection: Standard Cores
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Parts and Accessories Type: Replacement Parts
  • Product Attribute: Parts and Accessories
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Product Subgroup: Cylinders
  • Product Type: Cylinders
  • Series: Standard & Premium Cores
  • Subcategory: Parts and Accessories

Installation & Operation

This cylinder core is designed for use with compatible high security mortise cylinders. Refer to the parent device installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware before installation.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Financial Institutions
  • Industrial and Warehouse Facilities
  • High Security Access Control Systems

Why Choose BEST Quality?

BEST cylinder cores deliver professional-grade reliability with precision manufacturing engineered to strict tolerances for demanding commercial applications. For nearly 100 years, BEST Standard key systems have provided security, durability and performance across a wide range of applications. BEST actively supports new and existing systems, ensuring long-term reliability and continued service for your security investment.

Manufacturer Resources

Premium Cores and Keys

Product Specs

Product Group:
Parts and Accessories
Series:
Standard & Premium Cores
Product Subgroup:
Cylinders
Product Type:
Cylinders
Subcategory:
Parts and Accessories
Commercial/Residential:
Commercial
Collection:
Standard Cores
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Category:
Mechanical Locks
Department:
Door Hardware

BEST BES-5C7A1605 – Frequently Asked Questions

1) Will a BEST 5C 7-pin high security core fit any BEST mortise cylinder housing?
No. The 5C Series high security core only goes into high security mortise cylinder housings. It will not drop into a standard BEST mortise housing, and it takes a long blade key rather than a standard-length one. If the housing on the door is a conventional BEST mortise cylinder, this core is the wrong part for it.
2) What is the difference between ordering a BEST 5C core combinated and uncombinated?
Combinated means the core arrives pinned to a keying assignment, so it works on the key system you specify. Uncombinated arrives unpinned for a locksmith or in-house shop to combinate to their own system. On a combinated order you supply the keymark and the marking number so the core is cut into the right masterkey system; on an uncombinated order those fields are left blank.
3) Which keyways can I get a BEST 5C 7-pin core in?
Twenty keyways are available on the 5C 7-pin core: A, B, C, D, DD, E, F, G, H, J, K, L, M, N, O, R, TB, TC, TD and TE. Order the keyway that matches the system already running in the building, otherwise the core will not accept the keys your staff carry. If you are starting a new system, the keyway choice is what keeps that building's keys separate from the next one.
4) Can I add BEST 5C high security cores to an existing BEST masterkey system?
Yes, when the core is ordered combinated to that system. BEST built these cores to the same tolerances as their patented systems and continues to support both new and existing Standard key systems, so a facility running a BEST masterkey plan can add high security openings without starting a second system. Give the keymark and marking number from your existing system on the order.
5) Can I rekey a building by swapping just the cores instead of replacing the locks?
That is what the 5C is for. It is a replacement core, so a control key pulls the old core and the new one drops into the same high security mortise housing with no disassembly of the lock and no change to the door prep. For a facility rekeying after a lost master or a tenant turnover, ordering cores combinated to a new keymark rekeys the openings without touching the hardware itself.
6) I need a mortise cylinder for a mortise lock but not an interchangeable core system. What should I use instead of a BEST 5C core?
A fixed mortise cylinder is the right call when there is no interchangeable core housing in the door. The BEST 5C Series High Security 7-Pin Cylinder Core is a core only, and it goes into high security mortise cylinders rather than into the lock body directly. For a one-piece mortise cylinder, the Corbin Russwin 1000 Grade 1 Series mortise cylinder comes in 1-1/2 inch length with an A02 straight cam, and the Adams Rite 4036 is a Grade 1 five-pin mortise cylinder for doors 1/2 inch minimum thickness. Pick the cam to match the lock body the cylinder drives.
7) What is the difference between a BEST 5C 7-pin core and a Schlage 20-057 full size interchangeable core?
They are different core platforms and are not interchangeable in the same housing. The BEST 5C Series High Security 7-Pin Cylinder Core is a 7-pin core built for high security mortise cylinders and requires a long blade key, and it comes in keyways A through TE including the TB, TC, TD and TE group. The Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam, and the 20-057-C ships as a full size interchangeable core cylinder in the C keyway with a 643E aged bronze finish. If the housings on the doors are BEST-format high security mortise cylinders, the 5C core is the one that seats; if they are Schlage FSIC rim housings on exit devices, the 20-057 family is the correct part.
8) Is the Corbin Russwin 1080 LFIC mortise cylinder an equivalent to a BEST 5C core?
No, they sit at different points in the assembly. The Corbin Russwin 1080 Grade 1 Series is a 1-1/2 inch LFIC mortise cylinder, 6-pin, made for Schlage L9000 mortise locks with an A01 cloverleaf cam. It is a complete cylinder that accepts a large format core. The BEST 5C Series High Security 7-Pin Cylinder Core is the core itself, 7-pin, requiring a long blade key and fitting high security mortise cylinders, and it is ordered by keyway and finish with combinated and uncombinated options. Order the 1080 when you need the housing and cam; order the 5C when the housing is already in the door and you are rekeying or standardizing the core.
9) What do I use for a rim exit device instead of a BEST 5C mortise core?
A rim cylinder is the part that drives a rim exit device, and it is a different body than a mortise core. The BEST 5C Series High Security 7-Pin Cylinder Core is compatible only with high security mortise cylinders. For rim applications, the Schlage 20-021 is a 6-pin rim cylinder with a vertical tailpiece cam and two keys, and the 20-022 is the same 6-pin rim cylinder with a horizontal tailpiece cam and two keys. The Corbin Russwin 3070 is a 6-pin rim cylinder housing with a 1-7/8 inch tailpiece. Match the tailpiece orientation and length to the device chassis.
10) The doors take a Schlage C keyway. Does a BEST 5C core work, or do I need something else?
The BEST 5C Series High Security 7-Pin Cylinder Core is offered in the BEST keyway range A through TE, so a system already cut to Schlage C is a different keyway family. For a Schlage C mortise application, the Detex MC65 is a mortise cylinder with Schlage C keyway, 1-1/8 inch, 6-pin commercial grade, and the Schlage 20-057-C is a full size interchangeable core cylinder in the C keyway with a 643E aged bronze finish. Choose the 5C when the site is being brought onto a BEST high security system rather than kept on the existing Schlage C keys.
11) A BEST 5C core will not work on our aluminum storefront deadlock. What is the alternative?
Narrow stile aluminum storefront hardware uses cylinder pulls and deadlock-specific cylinders rather than a mortise core. The BEST 5C Series High Security 7-Pin Cylinder Core is compatible only with high security mortise cylinders. For an Adams Rite MS1847 deadlock or deadlatch, the Adams Rite 4024 is a cylinder pull with trim plate mounting and the 4025 is a five pin tumbler cylinder pull with through-screws, both designed for the MS1847. On a wood door with an Adams Rite 5017 wood door deadlock or deadlatch, the 4026 five pin tumbler cylinder pull is the matching part.
12) What finishes does the BEST 5C 7-pin core come in?
Eight: 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 satin bronze oil-rubbed, 625 bright chrome, 626 satin chrome and 690 statuary dark bronze. The core face is what shows once it is installed, so match it to the lock trim on the opening. 626 satin chrome is the usual choice on commercial openings already running satin chrome levers.
13) Can I rekey a knob or lever lock with a BEST 5C 7-pin core?
Only if that lever or knob carries a high security mortise cylinder housing, which most key-in-knob and key-in-lever chassis do not. The BEST 5C Series High Security 7-Pin Cylinder Core is built for high security mortise cylinders. For a standard key-in-knob or key-in-lever chassis, the Kaba Ilco 1539 Series is a key-in-knob and lever universal cylinder, the 1579 Series is a knob and lever cylinder for Sargent, and the 1599 Series is a key-in-knob replacement cylinder. The Falcon A23161-05 G is a key-in-lever cylinder in the RU/T Series 6-pin G keyway, keyed different, supplied with two cut keys.
14) We are standardizing a facility on one key system. How does a BEST 5C core compare to buying complete cylinders like the Corbin Russwin 1070?
The two approaches differ in what gets swapped when keying changes. The BEST 5C Series High Security 7-Pin Cylinder Core is a replacement part that pulls and drops in, sold uncombinated or combinated, across keyways A through TE and finishes from 605 bright brass through 690 statuary dark bronze, and BEST supports precise, carefully managed masterkey applications. The Corbin Russwin 1070 Grade 1 Series is a 1-1/4 inch 6-pin mortise housing with an A01 cloverleaf cam, and the Corbin Russwin 1000 Grade 1 Series is a 1-1/2 inch mortise cylinder with an A02 straight cam; with those, keying changes mean pinning or replacing the whole cylinder. Facilities that expect frequent turnover in occupancy usually favor the core approach.
15) Can I put a BEST 5C core in a residential deadbolt or handleset?
No. The BEST 5C Series High Security 7-Pin Cylinder Core is a commercial part built for high security mortise cylinders and requiring a long blade key. Deadbolts and handlesets take rim-type cylinders sized to that hardware. The Medeco 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts, the 1065244 is a 5-pin lazy motion rim type cylinder with an Emtek tailpiece, and the 1065140 is a 5-pin retrofit cylinder for the Arrow JL interconnected lock and Emtek handleset and deadbolt outside cylinder. The Emtek CY4 cylinder is sold each for Emtek hardware.
16) What is the difference between the BEST 5C 7-pin core and a key-in-deadbolt cylinder like the Kaba Ilco 1549?
They serve different lock bodies. The Kaba Ilco 1549 Series is a key-in-deadbolt cylinder, functioning as a deadbolt cylinder in that chassis. The BEST 5C Series High Security 7-Pin Cylinder Core is a 7-pin high security core that seats in high security mortise cylinders and takes a long blade key, and it is ordered by keyway, finish, and whether it arrives combinated or uncombinated with keymark and marking number specified. A deadbolt that already carries a BEST high security mortise cylinder takes the 5C; a standard key-in-deadbolt chassis takes the 1549.
17) Is the BEST 5C core suitable for apartments and houses, or is it a commercial part?
It is a commercial part. The 5C high security core is built for commercial use, and the applications it is put into are office buildings, schools, hospitals, government and municipal buildings, financial institutions, warehouses and access control points. For a rental unit deadbolt or knob, a key-in-knob replacement cylinder like the Kaba Ilco 1599 or the 1549 key-in-deadbolt cylinder is the closer fit.
How fast can I get the BEST BES-5C7A1605 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 BEST BES-5C7A1605 come with a warranty?
Absolutely. The BEST BES-5C7A1605 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 BEST BES-5C7A1605?
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
Why buy the BEST BES-5C7A1605 from ZenSupply?
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