BEST 1E Series Standard Core 7...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$212.00
$79.01
BEST BEST 1E Series Standard Core 7-Pin Mortise Cylinder, 1-5/32" Diameter BES-1E7-STANDARD

BEST 1E Series Standard Core 7-Pin Mortise Cylinder with 1-5/32" Diameter

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Model: 1E74-C4RP3626-SC
From the E Series Cylinders Collection
$212.00
$79.01
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$212.00
$79.01
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BEST 1E Series Standard Core 7-Pin Mortise Cylinder with 1-5/32" Diameter

Professional Mortise Cylinder Solution

The BEST 1E Series Standard Core 7-Pin Mortise Cylinder delivers reliable security for standard mortise applications with its precision 1-5/32" diameter design. Machined from brass or bronze bar stock, this cylinder features BEST's interchangeable core system and includes the standard 1E-C4 cam for seamless integration. Enhanced security is provided by a diagonal set screw that securely holds the cylinder in the housing, while the 7-pin configuration offers advanced key control capabilities.

Professional Features & Benefits

  • Precision Diameter: 1-5/32" diameter engineered for standard mortise lock applications with exact fit tolerances.
  • 7-Pin Security Configuration: Advanced pin tumbler design provides enhanced key control and security levels for commercial applications.
  • Interchangeable Core System: BEST interchangeable core allows for easy rekeying and master key system integration without lock disassembly.
  • Premium Construction: Machined from brass or bronze bar stock for exceptional durability and corrosion resistance in demanding environments.
  • Enhanced Security Mounting: Diagonal set screw design securely holds the cylinder in housing, preventing unauthorized removal or tampering.
  • Universal Compatibility: Standard 1E-C4 cam included, with ability to adapt to other manufacturers' locks using different cams and cylinder rings.
  • Master Key Integration: Compatible with existing BEST master key systems for comprehensive access control management.

Technical Specifications

  • Collection: E Series Cylinders
  • Commercial/Residential: Residential
  • 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: 1E Series
  • Subcategory: Parts and Accessories

Installation & Operation

This cylinder component is designed for use with compatible mortise lock assemblies. 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
  • Retail Establishments
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities

Why Choose BEST Quality?

BEST 1E Series cylinders deliver professional-grade reliability with precision-machined brass or bronze construction engineered for demanding commercial applications. The interchangeable core system and diagonal set screw security features provide both convenience and enhanced protection. Engineered for demanding commercial applications where dependable performance and flexible key control are essential.

Manufacturer Resources

E Series Service Manual

Product Specs

Series:
1E Series
Subcategory:
Parts and Accessories
Product Group:
Parts and Accessories
Product Subgroup:
Cylinders
Product Type:
Cylinders
Commercial/Residential:
Residential
Collection:
E Series Cylinders
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Category:
Mechanical Locks
Department:
Door Hardware

BEST 1E74-C4RP3626-SC – Frequently Asked Questions

1) Will a BEST 1E Series mortise cylinder fit my existing mortise lock case?
The 1E Series mortise cylinder is machined to a 1-5/32 inch diameter, which is the standard mortise cylinder thread size, so it threads into a mortise lock case bored and tapped for a standard mortise cylinder. It's held in place by a diagonal set screw in the lock case rather than a face screw. What decides fit beyond the thread is the cam: it ships with the standard 1E-C4 cam, and other manufacturers' lock cases may need a different cam and a cylinder ring to make up the correct projection.
2) Does the BEST 1E cylinder come with a core, or do I have to order the core separately?
This is the standard core version, so the cylinder is supplied as a complete unit with the housing and a 7-pin core together. You still have to specify the keyway, the keymark, and the marking number when you order, because those are what tie the core into your key system.
3) Which BEST keyways can I get on a 1E mortise cylinder?
Twenty keyways are available on the 1E: A, B, C, D, DD, E, F, G, H, J, K, L, M, N, O, R, TB, TC, TD and TE. If you're adding doors to an existing BEST system, order the keyway that matches the cores already in the building, and give the keymark and marking number from your key records so the core is cut into the same system rather than keyed on its own.
4) Should I order a 6-pin or a 7-pin BEST core for my building?
The 1E Series here is 7-pin. Seven pins buys you a much deeper masterkeying tree and tighter key control than a 6-pin system, which is why larger facilities on BEST run 7-pin. The thing that matters more than the pin count is matching what's already installed: a 7-pin core and a 6-pin core are not interchangeable within the same key system, so if your existing cores are 6-pin, adding 7-pin cylinders means those doors sit outside your masterkey.
5) I need a rim cylinder for an exit device, not a mortise cylinder. Is this the right part?
No. The 1E covered here is a mortise cylinder, which threads into a mortise lock case. A rim cylinder mounts through the door with a backplate and screws and drives an exit device with a tailpiece. For rim applications look at the Schlage 20-021 6-pin rim cylinder with a vertical tailpiece cam, the 20-022 with a horizontal tailpiece cam, or the Corbin Russwin 3070 6-pin rim cylinder housing with a 1-7/8 inch tailpiece. If you want to stay on an interchangeable core system, the Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam.
6) My existing cylinder is a Schlage C keyway. Can I order a BEST 1E to match it?
No. The 1E is a BEST interchangeable core cylinder and its keyways are BEST's own: A, B, C, D, DD, E, F, G, H, J, K, L, M, N, O, R, TB, TC, TD and TE. BEST's C keyway is not the same as Schlage C, and a Schlage C key will not enter it. If you need to stay on Schlage C in a mortise lock, the Detex MC65 is a 1-1/8 inch 6-pin commercial mortise cylinder in Schlage C keyway.
7) What information do I have to give when ordering a BEST 1E cylinder for an existing master key system?
Three things are required and none of them are optional: keyway, keymark, and marking number. The keyway is the mechanical section the key blade rides in, the keymark identifies the specific key change within your system, and the marking number is what BEST stamps on the core so it can be traced back to your system records. Pull those off the paperwork or off an existing core in the building. Then pick the cam (standard or Adams Rite MS), the ring, the mortise type, and the finish.
8) I need an interchangeable core cylinder but the building is keyed to Schlage - what do I use instead of a BEST 1E7?
The BEST 1E Series 7-pin mortise cylinder is built around the BEST interchangeable core and is keyed in BEST keyways, which are offered from A through TE. For a Schlage-keyed building that still wants a removable core, the Schlage 20-057-C is a full size interchangeable core cylinder in the Schlage C keyway with a 643E aged bronze finish, and the Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam. Note that those Schlage cores are full size interchangeable, not the small format core the BEST 1E7 uses, so the two core families are not swapped into one another.
9) Can I use a BEST 1E7 cylinder in an Adams Rite narrow stile deadlock?
The BEST 1E Series 7-pin mortise cylinder is offered with an Adams Rite MS cam among its cam and spindle options, which is the cam that drives an Adams Rite MS deadbolt, so the BEST core and key system can be carried onto an aluminum storefront door. If you would rather stay with the lock manufacturer's own cylinder, the Adams Rite 4036 is a five-pin mortise cylinder listed as Grade 1 with a 1/2 inch minimum door thickness. The 4036 is a conventional five-pin cylinder, so it does not accept a BEST interchangeable core.
10) What is the difference between a BEST 1E7 mortise cylinder and a Corbin Russwin 1000 mortise cylinder?
Both are mortise cylinders for commercial locks, but they take different key systems. The BEST 1E Series 7-pin mortise cylinder uses BEST's interchangeable core, so the core drops out with a control key and the housing stays in the lock when you rekey. The Corbin Russwin 1000 is a Grade 1 series mortise cylinder in a 1-1/2 inch length with an A02 straight cam, built as a conventional cylinder rather than an interchangeable core. If the building is already on a BEST small format core system, the 1E7 keeps the cores and control key in one family; if the openings are keyed to Corbin Russwin, the 1000 matches that side.
11) The lock is a key-in-knob or key-in-lever, not a mortise lock - what cylinder do I need instead of the BEST 1E7?
A key-in-knob or key-in-lever lock takes a knob cylinder, not a threaded mortise cylinder like the BEST 1E Series 7-pin. The Kaba Ilco 1539 is a key-in-knob and lever universal cylinder, the Kaba Ilco 1599 is a key-in-knob replacement cylinder, the Kaba Ilco 1579 is a knob and lever cylinder for Sargent locks, and the Falcon A23161-05 G is a key-in-lever cylinder for the RU/T series in the six-pin G keyway, keyed different with two cut keys. Match the cylinder to the lock brand and chassis in the door.
12) I have Schlage L9000 mortise locks and want an interchangeable core - does the BEST 1E7 fit?
The BEST 1E Series 7-pin mortise cylinder is described as adaptable to other manufacturers' locks using different cams and cylinder rings, and it is offered with a standard cam, an Adams Rite MS cam, and a standard spindle. If you want a cylinder already built for that lock, the Corbin Russwin 1080 is a 1-1/2 inch LFIC mortise cylinder, 6-pin, specified for Schlage L9000 mortise locks with an A01 Schlage L cam. The 1080 takes a large format interchangeable core rather than the BEST small format core, so the two do not share cores.
13) Do I need a cylinder ring with a BEST mortise cylinder, and which one?
You need a ring whenever the cylinder would otherwise sit proud of or below the face of the door or lock trim. The 1E can be ordered with a 3E mortise ring, a 6-pin mortise ring, a 7-pin mortise ring, a rim cylinder ring or a tapered cylinder ring. Measure from the face of the lock case to the finished face of the door and pick the ring that brings the cylinder flush, then set the diagonal set screw.
14) What finishes does the BEST 1E mortise cylinder come in to match the rest of my door hardware?
Ten finishes are offered: 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 satin bronze oil-rubbed, 619 satin nickel, 622 matte black, 625 bright chrome, 626 satin chrome and 690 statuary dark bronze. On a fleet of doors, 626 satin chrome and 630-family satin finishes are the usual commercial standard, and 613 is what you order to match oil-rubbed bronze trim. Because the cylinder is machined from brass or bronze bar stock, the finish is applied over solid nonferrous metal rather than plated steel.
15) Is a cylinder pull the same thing as a BEST 1E7 mortise cylinder?
No, and they are not interchangeable. The BEST 1E Series 7-pin cylinder is the keyed cylinder itself, threaded into a mortise lock body. A cylinder pull is a pull plate assembly that carries a cylinder on a narrow stile door: the Adams Rite 4024 is a cylinder pull with trim plate mounting for MS1847 deadlock systems, the 4025 is a five-pin tumbler cylinder pull with through-screws for the MS1847, and the 4026 is a five-pin tumbler cylinder pull for wood door applications with the 5017 wood door deadlock. If the door needs a pull as well as a key, the pull is the assembly and the 1E7 is only the cylinder.
16) What cylinder replaces a residential deadbolt or handleset cylinder if the BEST 1E7 will not fit?
The BEST 1E Series 7-pin cylinder is a threaded mortise cylinder and does not drop into a residential deadbolt or handleset. For those, the Medeco 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the Medeco 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts, the Medeco 1065244 is a 5-pin lazy motion rim type cylinder with an Emtek tailpiece, and the Medeco 1065140 is a 5-pin retrofit cylinder for the Arrow JL interconnected lock and Emtek handleset and deadbolt outside cylinder. The Kaba Ilco 1549 is a key-in-deadbolt cylinder for the same kind of opening.
17) Which cylinder is simpler if I do not need interchangeable cores or master keying?
The BEST 1E Series 7-pin mortise cylinder is built for key control: seven pins, an interchangeable core that rekeys without disassembling the lock, and integration with existing BEST master key systems. If an opening only needs a working key and none of that, a conventional cylinder is the simpler part - the Adams Rite 4036 is a five-pin mortise cylinder listed as Grade 1, and the Detex MC65 is a six-pin mortise cylinder in the Schlage C keyway. Those are pinned as fixed cylinders, so rekeying means pulling and repinning the cylinder rather than swapping a core.
18) What is the standard spindle option on the BEST 1E for?
The standard spindle is ordered in place of a cam when the cylinder has to drive a lock through a spindle rather than a cam ear, which is how some cylinder-operated devices and older mortise applications take their drive. On the 1E you pick one drive option: standard cam, Adams Rite MS cam, or standard spindle. Check what the existing cylinder in the door uses before you order, because the wrong drive means the key turns and the lock doesn't.
19) Is a BEST 1E cylinder tough enough for a high-traffic commercial or institutional door?
The cylinder body is machined from brass or bronze bar stock, which is solid nonferrous metal rather than a cast or plated shell, and it resists corrosion in wet and exterior openings. The diagonal set screw holds it in the housing and makes it harder to twist out from the outside. That combination is why these turn up on office buildings, schools, hospitals, retail, multi-tenant residential, government buildings and warehouses.
20) I am replacing an Emtek cylinder - can I standardize on the BEST 1E7 instead?
Only if the door takes a mortise cylinder. The BEST 1E Series 7-pin cylinder is a 1-5/32 inch diameter threaded mortise cylinder. Emtek openings are usually served by their own part, the Emtek CY4 cylinder, or by a retrofit such as the Medeco 1065244, a 5-pin lazy motion rim type cylinder with an Emtek tailpiece, or the Medeco 1065140, a 5-pin retrofit for the Emtek handleset and deadbolt outside cylinder. Confirm whether the hardware needs a tailpiece-driven cylinder or a cam-driven mortise cylinder before you standardize.
How fast can I get the BEST 1E74-C4RP3626-SC delivered?
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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 1E74-C4RP3626-SC come with a warranty?
Absolutely. The BEST 1E74-C4RP3626-SC 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 1E74-C4RP3626-SC?
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