BEST 1EC Series Square Head Mo...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$167.00
$117.49
BEST 1EC Series Square Head Mortise Cylinder Less Core, 1-5/32" Diameter BES-1EC-LESSCORE

BEST 1EC Series Square Head Mortise Cylinder Less Core with 1-5/32" Diameter

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Model: 1EC6C4-C4RP3626-LC
From the E Series Cylinders Collection
$167.00
$117.49
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$167.00
$117.49
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BEST 1EC Series Square Head Mortise Cylinder Less Core with 1-5/32" Diameter

Professional Mortise Cylinder Component

The BEST 1EC Series Square Head Mortise Cylinder provides reliable lock cylinder functionality with a precise 1-5/32" diameter design. This less core configuration features solid brass or bronze construction with configurable cam options and includes a special 5/8" slip ring for versatile installation requirements. Available in both 6-pin (1-1/4" length) and 7-pin (1-13/32" length) configurations to meet specific security and keying needs.

Professional Features & Benefits

  • Precision Diameter: 1-5/32" diameter ensures proper fit in standard mortise lock applications.
  • Configurable Length Options: Available in 6-pin (1-1/4" length) and 7-pin (1-13/32" length) configurations for different security requirements.
  • Durable Construction: Solid brass or bronze material provides exceptional corrosion resistance and long-term durability.
  • Flexible Cam Configuration: Cam specified on order allows customization for specific lock mechanisms and applications.
  • Complete Ring Package: Includes special 5/8" slip ring with additional length options available for various installation requirements.
  • Professional Ordering System: Designate "C4" on step "C" of order procedure for proper configuration (Example: 1EC 7C4 C181CR1010 626).

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: 1EC Series
  • Subcategory: Parts and Accessories

Installation & Operation

This cylinder component is designed for use with compatible BEST mortise lock systems. Refer to the parent device installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware before installation.

Professional Applications

  • Residential Lock System Maintenance
  • Property Management Cylinder Replacement
  • Locksmith Service and Repair
  • Multi-Unit Housing Keying Systems
  • Security System Upgrades
  • Lock Rekeying Projects

Why Choose BEST Quality?

BEST 1EC Series cylinders deliver professional-grade reliability with solid brass or bronze construction engineered for demanding residential applications. The precision 1-5/32" diameter and configurable length options ensure proper fit and function in mortise lock systems. Engineered for dependable performance where reliable lock cylinder operation is essential.

Manufacturer Resources

E Series Service Manual

Product Specs

Series:
1EC 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 1EC6C4-C4RP3626-LC – Frequently Asked Questions

1) Does the BEST 1EC mortise cylinder come with a core, or do I need to order one separately?
The 1EC Series square head mortise cylinder is a less core housing. You get the cylinder shell, the cam you specify on the order, and a special 5/8 inch slip ring, but no core and no keys. Plan on supplying a BEST core, either from your existing keying system or ordered separately, before this goes in a door. That is the point of the part: a locksmith or property manager already running a BEST keyed system drops their own core in and the opening keys to the same system as the rest of the building.
2) Will a 1-5/32 inch diameter mortise cylinder thread into a standard mortise lock case?
Yes. 1-5/32 inch is the standard mortise cylinder diameter used across commercial mortise lock bodies, so the 1EC housing threads into the cylinder pocket of a standard mortise case. What decides the fit is not the diameter but the length and the cam: pick the 6-pin (1-1/4 inch) or 7-pin (1-13/32 inch) body so the cylinder sits flush with the trim, and specify the cam that matches the lock case you are driving.
3) Which cam do I order on a BEST 1EC cylinder for an Adams Rite deadlock?
Adams Rite MS deadlocks take the Adams Rite MS cam, and that is one of the cam options on the 1EC. Order it that way rather than trying to swap a cam later. The other choices are the standard cam, which suits conventional mortise lock cases, and a standard spindle. Get this right on the order form, because the cam is what actually retracts the bolt: the correct diameter and pin count with the wrong cam is a cylinder that turns and does nothing.
4) I need a mortise cylinder but I am not running BEST interchangeable cores. What should I buy instead?
A less core housing only makes sense if you already have BEST cores on hand. If you do not, buy a complete keyed cylinder. The Corbin Russwin 1000 Series mortise cylinder is a 1-1/2 inch length with an A02 straight cam, and the Corbin Russwin 1070 is a 1-1/4 inch 6-pin mortise housing with an A01 cloverleaf cam. For a Schlage C keyway opening, the Detex MC65 is a 1-1/8 inch 6-pin mortise cylinder in that keyway. Match the cam to your lock case in every case.
5) The opening takes a rim cylinder, not a mortise cylinder - what are the options?
A rim cylinder mounts through the door and drives an exit device or rim lock with a tailpiece, which is a different body from a mortise cylinder that threads into the lock case. The Schlage Commercial 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. The Corbin Russwin 3070 is a 6-pin rim cylinder housing with a 1-7/8 inch tailpiece. Tailpiece orientation and length have to match the device the cylinder is driving.
6) What is the closest equivalent to a BEST 1EC mortise cylinder housing if I need a conventional keyed mortise cylinder instead of a less-core housing?
The BEST 1EC is a less core mortise cylinder housing in 6-pin and 7-pin types, with the cam specified on order and finishes from 605 Bright Brass through 626 Satin Chrome. If you need a mortise cylinder that arrives as a complete keyed unit rather than a housing awaiting a core, the Corbin Russwin 1000 Grade 1 Series mortise cylinder is 1-1/2 inch long with an A02 straight cam, and the Corbin Russwin 1070 Grade 1 Series is a 1-1/4 inch 6-pin mortise housing with an A01 cloverleaf cam. Match the cam style to what your mortise lock body calls for, since the cam is what drives the lock.
7) I need an interchangeable core mortise cylinder for Schlage L9000 mortise locks - what should I order?
The Corbin Russwin 1080 Grade 1 Series is a 1-1/2 inch large format interchangeable core mortise cylinder, 6-pin, built for Schlage L9000 mortise locks with an A01 Schlage L cam. The BEST 1EC is also a less core mortise housing in 6-pin and 7-pin, with the cam designated on the order, so the cam call-out is what decides whether it drives the lock body you have.
8) Can I use a BEST 1EC mortise cylinder in an Adams Rite narrow stile aluminum door?
The BEST 1EC does offer an Adams Rite MS cam as an ordering option alongside the standard cam, which is the cam Adams Rite MS deadlocks require. If the opening instead needs a purpose-built cylinder, the Adams Rite 4036 is a Grade 1 mortise cylinder with five-pin security and a 1/2 inch minimum door thickness. Where the hardware is an MS1847 deadlock with a cylinder pull, the Adams Rite 4024 mounts with a trim plate and the 4025 is a five pin tumbler cylinder pull with through-screws, both for the MS1847 deadlock or deadlatch.
9) How do I specify a BEST 1EC less core cylinder correctly when ordering?
Designate C4 at step C of the BEST order procedure. A complete string looks like 1EC 7C4 C181CR1010 626, which reads as the 1EC housing, 7-pin less core, the cam and ring designation, and the finish. Sort out four things before you send it: pin count (6 or 7), cam (standard, Adams Rite MS, or standard spindle), ring, and finish.
10) What ring do I need with a BEST 1EC mortise cylinder, and is one included?
A special 5/8 inch slip ring ships with the cylinder, with longer ring options available when the trim or door prep sets the cylinder deeper. Ring choices are 3E mortise, 6-pin mortise, 7-pin mortise, rim cylinder, and tapered cylinder. Pair the ring to the pin count you ordered, and step up in length if the cylinder face sits below the trim.
11) I am keying an apartment building on BEST cores. Can I standardize every mortise lock on this one cylinder?
Across mortise openings, yes, as long as three things stay constant: pin count, cam, and finish. Order all units in the same 6-pin or 7-pin length so one core stock fits every door, pick the cam that matches your mortise lock cases, and hold one finish code across the building. Openings that are not mortise (rim exit devices, key-in-lever sets) need a different cylinder body, so those get handled separately even though they can share the same BEST keying system through their own cores.
12) What looks like a substitute for a mortise cylinder but will not work in a mortise lock?
Key-in-knob and key-in-lever cylinders share the word cylinder but seat in the knob or lever, not in a mortise lock case. The Kaba Ilco 1539 is a key-in-knob and lever universal cylinder, the 1579 is a knob and lever cylinder for Sargent, and the 1599 is a key-in-knob replacement cylinder. The Falcon A23161-05 G is a key in lever cylinder with a 6-pin G keyway, keyed different with two cut keys. None of those thread into a mortise lock the way the BEST 1EC less core mortise cylinder does.
13) I am replacing a deadbolt cylinder on apartment units - is a 1EC mortise cylinder the right part?
The BEST 1EC is a less core mortise cylinder that threads into a mortise lock case and takes a cam designated on the order. For a deadbolt, the Kaba Ilco 1549 is a key-in-deadbolt cylinder and the Kaba Ilco 1539 also carries a deadbolt function. For residential deadbolts and handlesets, the Medeco 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts, and the Medeco 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts.
14) What is the difference between a less core cylinder like the BEST 1EC and a full size interchangeable core cylinder?
The BEST 1EC ships as a less core mortise housing, meaning the core is supplied separately and dropped in, and it comes in 6-pin and 7-pin types with rings for 3E mortise, 6-pin mortise, 7-pin mortise, rim cylinder and tapered cylinder applications. On the full size interchangeable core side, the Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam and two keys, and the Schlage 20-057-C is a full size interchangeable core cylinder in the C keyway with a 643E Aged Bronze finish. The FSIC parts are rim bodies; the 1EC housing is mortise.
15) I need a mortise cylinder in a Schlage C keyway that comes keyed rather than as a housing - what is the alternative?
The Detex MC65 is a mortise cylinder with a Schlage C keyway, 1-1/8 inch, 6-pin, commercial grade. The BEST 1EC by contrast is a less core mortise cylinder in 6-pin and 7-pin, so its keying is determined by the core you install rather than by the housing itself.
16) What finishes does the BEST 1EC mortise cylinder come in to match the rest of my door hardware?
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. For a property manager standardizing a building, 626 satin chrome and 613 oil-rubbed bronze are the two that most commonly match existing commercial lock trim. Note that these are BHMA finish numbers, so 626 on the cylinder matches 626 on the lever trim.
17) Will a BEST 1EC cylinder hold up on an exterior door?
The 1EC housing is solid brass or bronze, which resists corrosion on a weather-exposed opening. Choose the finish with that in mind: plated finishes like 625 bright chrome and 626 satin chrome wear differently outdoors than 613 satin bronze oil-rubbed or 690 statuary dark bronze. The core you install is what determines the security level, since the housing ships without one.
18) What cylinder do I use for an Emtek handleset or an Arrow JL interconnected lock instead of a mortise cylinder?
The Medeco 1065140 is a 5-pin retrofit cylinder for the Arrow JL interconnected lock and for Emtek handleset and deadbolt outside cylinder use, and the Medeco 1065244 is a 5-pin rim lazy motion rim type cylinder with an Emtek tailpiece. Emtek also lists the CY4 cylinder sold each. Those are rim and retrofit bodies for residential trim, a different mounting from the BEST 1EC mortise housing.
19) For a wood door deadlock rather than an aluminum storefront, which cylinder pull applies?
The Adams Rite 4026 is a five pin tumbler cylinder pull designed for the Adams Rite 5017 wood door deadlock or deadlatch, while the 4024 and 4025 cylinder pulls are for the MS1847 deadlock or deadlatch used in narrow stile aluminum. The BEST 1EC is a mortise cylinder rather than a cylinder pull, and it does offer an Adams Rite MS cam option for MS lock bodies.
How fast can I get the BEST 1EC6C4-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 1EC6C4-C4RP3626-LC come with a warranty?
Absolutely. The BEST 1EC6C4-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 1EC6C4-C4RP3626-LC?
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Why buy the BEST 1EC6C4-C4RP3626-LC from ZenSupply?
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