BEST 1EA Series 6-Pin Mortise/...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$84.00
$59.59
BEST 1EA Series 6-Pin Mortise/Rim Cylinder with Less Core BES-1EA-LESSCORE

BEST 1EA Series 6-Pin Mortise/Rim Cylinder with Less Core

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Model: 1EA6A2-C4RP3626-LC
From the E Series Cylinders Collection
$84.00
$59.59
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$84.00
$59.59
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BEST 1EA Series 6-Pin Mortise/Rim Cylinder with Less Core

Professional Cylinder Component for E Series Lock Systems

The BEST 1EA Series 6-Pin Mortise/Rim Cylinder provides essential cylinder functionality for E Series lock systems. This solid brass or bronze cylinder features a 1-5/32" diameter with precise length specifications: 1-1/8" for mortise applications (1EA6A4) and 1-3/16" for rim configurations (1EA6A2 standard, 1EA6A1 ADA). Supplied with standard 1E-C140 cam and RP2 ring package for mortise 6-pin applications.

Professional Features & Benefits

  • Precision Dimensions: 1-5/32" diameter with application-specific lengths of 1-1/8" for mortise and 1-3/16" for rim configurations.
  • Heavy-Duty Construction: Solid brass or bronze materials provide exceptional durability and corrosion resistance for long-term performance.
  • Standard Cam Configuration: Includes 1E-C140 cam unless otherwise specified for consistent operation with E Series lock systems.
  • Complete Ring Package: RP2 ring package supplied standard for mortise 6-pin applications ensuring proper installation and operation.
  • Versatile Applications: Compatible with both mortise and rim lock configurations including ADA-compliant options (1EA6A4 mortise, 1EA6A1 rim).
  • E Series Integration: Designed specifically for BEST E Series lock systems with precise compatibility and performance standards.

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: 1EA Series
  • Subcategory: Parts and Accessories

Installation & Operation

This cylinder component is designed for use with compatible BEST E Series lock systems. 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 cylinder components deliver professional-grade reliability with solid brass or bronze construction engineered for demanding applications. The 1EA Series maintains precise dimensional tolerances and material specifications essential for consistent lock system performance. Backed by comprehensive technical documentation and designed for seamless integration with E Series lock systems.

Manufacturer Resources

E Series Service Manual

Product Specs

Series:
1EA 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 1EA6A2-C4RP3626-LC – Frequently Asked Questions

1) Does the BEST 1EA cylinder come with a core and keys?
No core, no keys. The 1EA Series 6-pin mortise/rim cylinder ships less core, meaning it is the housing only. You supply the BEST small format interchangeable core keyed into your existing system, which is the point of buying it this way: a facility already running a BEST keying system pins its own cores and drops them in. If you need a cylinder that arrives keyed and ready to hang, a conventional housing like the Detex MC65 mortise cylinder with a Schlage C keyway is a different animal, it is not an IC housing.
2) Is the BEST 1EA a rim cylinder or a mortise cylinder?
Both are offered, and you choose. The 1EA Series is built in a mortise configuration at 1-1/8 inches (1EA6A4) and a rim configuration at 1-3/16 inches (1EA6A2 standard, 1EA6A1 ADA). A rim cylinder mounts through the door and drives a tailpiece into a surface mounted device such as a rim exit device; a mortise cylinder threads into the lock case and turns a cam. They are not interchangeable, so identify which one is in the door before ordering.
3) Which cam comes on the BEST 1EA cylinder, and can I get an Adams Rite cam instead?
Standard is the 1E-C140 cam unless you specify otherwise. On the order form the Options axis gives you three choices: Standard Cam, Adams Rite MS Cam, or Standard Spindle. Pick the Adams Rite MS cam if the cylinder is driving an Adams Rite MS deadlock in an aluminum stile door; pick the spindle version when the cylinder drives a knob or lever spindle rather than a cam. Getting this wrong is the most common reason a correctly sized cylinder will not throw the bolt.
4) Will the BEST 1EA cylinder work in a lock that is not a BEST E Series?
The 1EA cylinder is built for BEST E Series lock systems and the housing is sized for that family. It accepts a BEST small format core, so where a third party lock is prepped for a BEST SFIC housing it can work, but check the cam and the required cylinder length on the lock you are fitting before you commit. For a non-BEST mortise lock, a conventional housing sized to that brand is the straighter path, for example the Corbin Russwin 1070 in 1-1/4 inch with an A01 cloverleaf cam, or the 1080 LFIC housing that Corbin Russwin lists for Schlage L9000 mortise locks.
5) I need a rim cylinder for an exit device but I do not run a BEST keying system. What else is there?
The 1EA rim cylinder ships less core and only makes sense if you already stock BEST small format cores. If you do not, a conventional rim cylinder that arrives keyed with two keys is simpler: Schlage lists the 20-021 6-pin rim cylinder with a vertical tailpiece cam and the 20-022 with a horizontal tailpiece cam, and the tailpiece orientation is dictated by the exit device you are feeding. Corbin Russwin's 3070 6-pin rim housing with a 1-7/8 inch tailpiece is another. If you want interchangeable core but on the Schlage side, the 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam.
6) Do I need a special cylinder for an Adams Rite MS deadlock on an aluminum storefront?
Adams Rite MS deadlocks turn on their own cam profile, not a standard mortise cam. The BEST 1EA is offered with an Adams Rite MS cam as a selectable option alongside the standard cam and standard spindle, so one housing covers the storefront opening and the rest of the building on the same core program. If the storefront instead needs a cylinder pull rather than a cylinder in the lock, the Adams Rite 4025 is a five pin tumbler cylinder pull with through-screws for the MS1847 deadlock, the 4024 is the cylinder pull with trim plate mounting for the same MS1847 deadlock or deadlatch, and the 4026 is the five pin tumbler cylinder pull for the 5017 wood door deadlock or deadlatch.
7) What is the difference between a BEST 1EA cylinder and a Corbin Russwin 1070 mortise cylinder housing?
Both are mortise cylinder housings ordered without a core installed. The BEST 1EA is a 6-pin mortise/rim cylinder supplied less core, 1-1/8 inch long in the mortise configuration and 1-3/16 inch in the rim configuration, and it ships with the 1E-C140 cam unless another is specified. The Corbin Russwin 1070 is a Grade 1 series 1-1/4 inch 6-pin mortise housing furnished with the A01 cloverleaf cam. The cam pattern is the deciding detail: the cam has to match the mortise lock body the housing drives, so confirm which cam the lock case calls for before choosing between them.
8) Is a Schlage 20-057 FSIC rim cylinder the same thing as a BEST 1EA less core?
They are close in concept and different in core size. Both are rim cylinders sold as a housing that accepts an interchangeable core rather than a fixed pinned plug. The Schlage 20-057 is a 6-pin full size interchangeable core rim cylinder with a convertible tailpiece cam and two keys, and the 20-057-C is the full size interchangeable core version in C keyway with a 643E aged bronze finish. The BEST 1EA is a 6-pin mortise/rim cylinder less core in the E Series cylinder line, 1-3/16 inch in rim form. Full size and small format cores are not interchangeable with each other, so the core inventory the facility already stocks decides which housing is correct.
9) What is the alternative to a BEST 1EA when I want a mortise cylinder that arrives already keyed instead of less core?
The 1EA is supplied less core, which means a core and keys are ordered separately on the facility's key system. If the job needs a mortise cylinder that comes complete, the Detex MC65 is a 1-1/8 inch 6-pin commercial grade mortise cylinder in the Schlage C keyway, and the Adams Rite 4036 is a Grade 1 mortise cylinder with five-pin security suited to doors from 1/2 inch thick. The 1-1/8 inch length on the MC65 matches the 1-1/8 inch mortise length the 1EA uses, so the prep in the lock case is the same depth.
10) I am cylindering Schlage L9000 mortise locks. Will a BEST 1EA work, or do I need something else?
Cam pattern drives this. The BEST 1EA comes with the 1E-C140 cam as standard unless another cam is specified. For Schlage L9000 mortise locks, Corbin Russwin's 1080 is a Grade 1 series 1-1/2 inch 6-pin LFIC mortise cylinder built for Schlage L9000 mortise locks with the A01 Schlage L cam. If the L9000 bodies are the whole scope of the job, the 1080 arrives with the correct cam already fitted; if you are staying on a single cylinder platform across mixed hardware, specify the cam on the 1EA at order.
11) What ring do I need to order with a BEST 1EA cylinder?
For a mortise 6-pin application the RP2 ring package is supplied standard. The Rings axis lets you order it instead as 3E Mortise, 6-pin Mortise, 7-pin Mortise, Rim Cylinder, or Tapered Cylinder. The ring is what takes up the gap between the cylinder collar and the door or lock face, so match it to how the cylinder is mounted. Tapered is the one to choose where the trim needs a sloped collar rather than a flat one.
12) What is the difference between the ADA and standard versions of the BEST 1EA cylinder?
The Type axis carries three builds: ADA Mortise (6-pin), ADA Turn Knob-Rim (6-pin), and STD Turn Knob-Rim. The ADA rim version is the 1EA6A1; the standard rim is the 1EA6A2. The ADA variants use a turn knob you can operate without tight grasping or twisting of the wrist, which is what an accessible egress side calls for. If the inside of the door needs to be operable without a key on an accessible route, order the ADA type.
13) What finishes does the BEST 1EA cylinder come in, and which one matches my existing lever?
Ten finishes: 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. Those are BHMA finish numbers, so match the number stamped or specified on the lock you are keying rather than the name, 626 satin chrome being the usual commercial default and 630 stainless the one you will not find here.
14) I am standardizing a building on BEST keys. Can I use the 1EA across mortise locks and exit devices at once?
That is exactly the case it is built for. Because the 1EA housing takes your own BEST small format core, the same core, same keyway, and same masterkey level can be moved between the mortise version (1-1/8 inch, 1EA6A4) and the rim version (1-3/16 inch, 1EA6A2) across the building. Order the housings to match each door's application and pin one core spec for the whole site. Ring choice varies by opening: 3E, 6-pin, or 7-pin mortise, rim, or tapered.
15) Can I use a BEST 1EA cylinder to rekey a key-in-knob or key-in-lever lockset?
No. The 1EA is a mortise and rim cylinder, 1-1/8 inch for mortise and 1-3/16 inch for rim, and neither of those bodies drops into a knob or lever chassis. Key-in-knob and key-in-lever locks take a different cylinder shape entirely: the Kaba Ilco 1539 is a key-in-knob and lever universal cylinder, the 1579 is the knob and lever cylinder for Sargent, and the 1599 is a key-in-knob replacement cylinder. For a Falcon lever, the A23161-05 G is a key in lever cylinder for the RU/T series in the 6-pin G keyway, keyed different with two cut keys. Identify the lock chassis first, then the cylinder that fits it.
16) What cylinder do I use for a residential deadbolt or handleset rather than a BEST 1EA?
The 1EA is a mortise and rim cylinder that ships less core for E Series lock systems, which is a different animal from the tailpiece-driven cylinders residential deadbolts and handlesets use. For a Kwikset single cylinder deadbolt, the Medeco 1012040 is a 6-pin lazy motion rim cylinder. The Medeco 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts, and the 1065244 is a 5-pin rim lazy motion cylinder with an Emtek tailpiece. For an Arrow JL interconnected lock or an Emtek handleset and deadbolt outside cylinder, the Medeco 1065140 is the 5-pin retrofit. Kaba Ilco's 1549 is a key-in-deadbolt cylinder. The tailpiece is what has to match the deadbolt, so pick by the lock it drives.
17) We standardize finishes across a building. How does the finish range on the BEST 1EA compare with a Schlage FSIC cylinder?
The BEST 1EA is offered in 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, in solid brass or bronze construction. The Schlage 20-057-C full size interchangeable core cylinder is cataloged in 643E aged bronze. If the openings are being matched to existing lever and mortise trim across a facility, the 1EA finish range gives more room to land on the number already on the doors.
18) Is the BEST 1EA cylinder solid brass?
Solid brass or bronze, depending on the finish ordered. That matters on exterior and coastal openings where a plated pot metal housing corrodes at the collar and seizes the core retention. On a garden style apartment building or a school exterior door, the brass or bronze housing is why this part outlasts the trim around it.
How fast can I get the BEST 1EA6A2-C4RP3626-LC 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 1EA6A2-C4RP3626-LC come with a warranty?
Absolutely. The BEST 1EA6A2-C4RP3626-LC 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 1EA6A2-C4RP3626-LC?
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