BEST 1E Series 7-Pin SFIC Mort...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$115.00
$73.16
BEST BEST 1E Series 7-Pin Mortise Cylinder Less Core, 1-5/32" Diameter BES-1E7-LESSCORE

BEST 1E Series 7-Pin SFIC Mortise Cylinder Less Core with C4 Straight Cam

(No reviews yet) Write a Review

Model: 1E74-C4RP3626-LC
From the E Series Cylinders Collection
$115.00
$73.16
Selected Finish is

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

$115.00
$73.16
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

BEST 1E Series 7-Pin SFIC Mortise Cylinder Less Core with C4 Straight Cam

Professional Mortise Cylinder for BEST Interchangeable Core Systems

The BEST 1E Series 7-Pin SFIC Mortise Cylinder delivers professional-grade security for standard mortise lock applications. This cylinder features a 1-5/32" diameter construction machined from brass or bronze bar stock and includes the standard 1E-C4 straight cam configuration. Designed for use with BEST's interchangeable core system, this cylinder can be master-keyed into any existing BEST system and provides compatibility with 40/45H series locks.

Professional Features & Benefits

  • Precision Dimensions: 1-5/32" diameter construction ensures proper fit in standard mortise lock applications.
  • Heavy-Duty Construction: Machined from brass or bronze bar stock for exceptional durability and long-term reliability in commercial applications.
  • Enhanced Security Design: Diagonal set screw mounts in cylinder wall to securely hold the cylinder in the housing for added tamper resistance.
  • BEST Interchangeable Core Compatibility: Designed for use with BEST SFIC system allowing for easy core changes and master key integration.
  • Standard C4 Cam Configuration: Includes straight cam design for compatibility with 40/45H series locks and standard mortise applications.
  • System Integration: Can be master-keyed into any existing BEST system for comprehensive access control management.
  • Adaptable Design: Compatible with other manufacturers' locks through use of different cams and cylinder rings for versatile installation options.

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 replacement cylinder 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

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

Why Choose BEST Quality?

BEST 1E Series cylinders deliver professional-grade reliability with precision-machined brass or bronze construction and enhanced security features including diagonal set screw mounting. The interchangeable core system provides flexible key management options for demanding commercial applications where dependable access control is 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-LC – Frequently Asked Questions

1) Does the BEST 1E Series mortise cylinder come with a core and keys?
No core is included. The 1E Series 7-pin mortise cylinder is a less-core housing, so you order the small format interchangeable core separately and key it into your system. That is the point of the design: the housing goes in the lock, and the BEST SFIC core drops in afterward and can be master keyed into any existing BEST system. If you need a cylinder that arrives keyed and ready, a conventional cylinder like the Corbin Russwin 1000 Series 1-1/2 inch mortise cylinder with an A02 straight cam is the different animal to look at.
2) Will the BEST 1E mortise cylinder work in a 45H mortise lock?
Yes. The 1E cylinder ships with the standard 1E-C4 straight cam, which is the cam BEST specifies for 40H and 45H series mortise locks. Diameter is 1-5/32 inches, the standard mortise cylinder thread size, so it threads straight into the lock case. For other manufacturers' mortise locks you keep the same housing and change the cam and the cylinder ring to suit.
3) What do I have to specify when ordering a BEST 1E mortise cylinder?
Four things. Type: standard mortise or tapered mortise. Cam or spindle: standard cam, Adams Rite MS cam, or standard spindle. Ring: 3E mortise, 6-pin mortise, 7-pin mortise, rim cylinder, or tapered cylinder. Finish: 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, or 690 statuary dark bronze. The core is a separate line.
4) Can I add BEST 1E cylinders to the master key system already running in my building?
Yes. The 1E housing accepts BEST small format interchangeable cores, and those cores can be master keyed into any existing BEST system, so new openings pick up the same grand master and sub-master structure as the rest of the facility. Because the core is interchangeable, a tenant turnover or a lost key is a core swap with a control key rather than a lock change. That is the practical reason facilities standardize on the 1E across a site.
5) What is the equivalent mortise cylinder if the building is keyed to a Corbin Russwin system instead of BEST?
The BEST 1E Series 7-pin mortise cylinder is built around the BEST small format interchangeable core, so it belongs on openings managed under a BEST keying system. Where the keying is Corbin Russwin, the Corbin Russwin 1000 Grade 1 mortise cylinder in 1-1/2 inch length with the A02 straight cam covers the same straight-cam mortise position, and the Corbin Russwin 1080 Grade 1 LFIC mortise cylinder in 1-1/2 inch with an A01 cam covers it when the site runs Corbin Russwin large format interchangeable cores. Match the cam to the lock case in either direction: the 1E carries the C4 straight cam for 40/45H series locks, while the 1080 is set up with the A01 Schlage L cam for L9000 mortise locks.
6) Is a Schlage 20-057 interchangeable core the same thing as a BEST 1E cylinder?
They are different halves of different systems. The Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam, and the 20-057-C is a full size interchangeable core in C keyway, 643E aged bronze - full size cores, and the 20-057 sits in a rim position. The BEST 1E Series is a 7-pin small format interchangeable core mortise cylinder housing supplied less core, machined from brass or bronze bar stock at 1-5/32 inch diameter, and it threads into a mortise lock case. Ordering a full size core to fill a 1E housing, or a 1E housing to take a full size core, will not mate.
7) The opening takes a rim cylinder, not a mortise cylinder - what should be ordered instead?
A mortise cylinder threads into the lock case and drives a cam; a rim cylinder mounts through the door and drives a tailpiece, so the two are not interchangeable at the opening. For a rim position, the Schlage 20-021 is a 6-pin rim cylinder with a vertical tailpiece cam and the 20-022 is the same cylinder with a horizontal tailpiece cam, each supplied with two keys, and the Corbin Russwin 3070 is a 6-pin rim cylinder housing with a 1-7/8 inch tailpiece in the 3000 series. Confirm which tailpiece orientation the exit device or rim lock expects before ordering.
8) Will a BEST 1E mortise cylinder work in an Adams Rite narrow stile deadlock?
The 1E Series is ordered with an Adams Rite MS cam option, which is what lets a mortise cylinder drive an Adams Rite MS deadlock. Where the aluminum door needs a cylinder pull rather than a plain mortise cylinder, the Adams Rite 4024 cylinder pull with trim plate mounting and the 4025 five pin tumbler cylinder pull with through-screws are both built for the MS1847 deadlock and deadlatch, and the 4026 five pin tumbler cylinder pull is the wood door version for the 5017 wood door deadlock. For a straight mortise cylinder in that family, the Adams Rite 4036 is a five-pin Grade 1 mortise cylinder rated to a 1/2 inch minimum door thickness.
9) Which cylinder ring do I order with a 7-pin BEST mortise cylinder?
The ring sets how far the cylinder stands proud of the trim, so it has to match the cylinder length and the shape of the housing. For a 7-pin mortise housing the 7-pin mortise ring is the matching part; a 6-pin mortise ring is sized for a shorter 6-pin housing and a 3E mortise ring for the 3E housing. If you are ordering the tapered mortise version, take the tapered cylinder ring. Rim cylinder rings are also offered but belong on rim applications, not on a mortise lock.
10) What is the difference between the standard mortise and tapered mortise version of the BEST 1E cylinder?
Body shape at the face. The standard mortise housing is the straight cylindrical one that sits behind a conventional cylinder ring or escutcheon. The tapered mortise version has a cone-shaped face, used where the trim or the customer's look calls for a tapered collar, and it takes the tapered cylinder ring rather than the straight one. Function, 7-pin SFIC core acceptance and the 1-5/32 inch threaded diameter are the same either way.
11) BEST SFIC or a full size interchangeable core cylinder, which should I be buying?
They are not interchangeable systems, so match what the building already runs. The BEST 1E takes a small format interchangeable core, the figure-8 core, in a 7-pin housing. Full size interchangeable core is a different, larger core entirely; if your site is on FSIC, the Schlage Commercial 20-057 6-pin FSIC rim cylinder with convertible tailpiece cam is that family. Conventional keyed cylinders such as the Detex MC65 with a Schlage C keyway have no removable core at all, so rekeying means pinning the cylinder rather than swapping a core.
12) I need a mortise cylinder for a Schlage L9000 lock, will the BEST 1E fit?
The 1E ships with the C4 straight cam, which BEST specifies for its own 40/45H mortise locks; other manufacturers' locks are handled by fitting a different cam and cylinder ring. If you want a cylinder built for the L9000 out of the box, the Corbin Russwin 1080 Series 1-1/2 inch LFIC mortise cylinder is listed for Schlage L9000 mortise locks with the A01 Schlage L cam.
13) What is the simpler option if the door only needs one keyed cylinder and no interchangeable core program?
The BEST 1E Series is a less-core housing, which means it only becomes a working cylinder once a BEST SFIC core is added, and its value is that it can be master keyed into an existing BEST system and swapped without pulling the lock. On a one-off opening with no core program behind it, a conventional keyed mortise cylinder is the shorter path: the Detex MC65 is a 1-1/8 inch 6-pin mortise cylinder in Schlage C keyway, and the Corbin Russwin 1000 Grade 1 mortise cylinder comes in 1-1/2 inch length with an A02 straight cam.
14) Can a BEST 1E cylinder be used to rekey a knob, lever, or deadbolt instead?
No - the 1E Series is a mortise cylinder that threads into a mortise lock case and turns a cam, and it is supplied with the C4 straight cam for 40/45H series locks. Key-in-knob, key-in-lever, and deadbolt bodies 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, the 1599 is a key-in-knob replacement cylinder, and the 1549 is the key-in-deadbolt cylinder. Falcon key-in-lever positions in the RU/T series take the A23161-05 G cylinder, a 6-pin G keyway supplied keyed different with two cut keys.
15) What cylinder goes in a residential handleset or deadbolt if the property is not on a BEST core system?
The BEST 1E Series is a mortise housing built for BEST small format cores and 40/45H series lock cases, which is not the geometry a residential handleset or deadbolt uses. For those, Medeco offers rim type lazy motion cylinders: the 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts, the 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1065244 is a 5-pin rim lazy motion 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. Emtek handlesets can also take the Emtek CY4 cylinder.
16) What is the difference between ordering a mortise cylinder and ordering a mortise housing?
A complete mortise cylinder arrives ready to key, while a housing is the shell that still needs a core or plug. The BEST 1E Series is supplied less core: 1-5/32 inch diameter, brass or bronze bar stock, with a diagonal set screw in the cylinder wall to hold it in the housing, and a BEST 7-pin small format core is added separately. The Corbin Russwin 1070 Grade 1 is likewise a 1-1/4 inch 6-pin mortise housing, supplied with an A01 cloverleaf cam, and the Corbin Russwin 3070 is a 6-pin rim cylinder housing with a 1-7/8 inch tailpiece. Ordering cams and cylinder rings is part of the same decision - the 1E takes 3E mortise, 6-pin mortise, 7-pin mortise, rim cylinder, and tapered cylinder rings.
17) How is the BEST 1E cylinder held in the lock so it cannot be turned out?
A diagonal set screw mounts in the cylinder wall and clamps the housing in place once it is threaded to depth. That is what stops the cylinder backing out or being wrenched out of the lock case. Standard practice on a mortise lock: thread the cylinder in until the cam lines up with the lock's cam slot, then tighten the set screw through the lock case edge.
18) What is the BEST 1E cylinder body made of, and will it hold up on a high traffic commercial door?
Machined from brass or bronze bar stock rather than cast, which is what keeps the threads and the cam seat true after years of core swaps and key throws. It is used across office buildings, schools, healthcare, retail, industrial, multi-tenant residential and government facilities. Finish choice does not change the body: all ten, from 626 satin chrome to 690 statuary dark bronze, are the same machined housing.
19) What is the standard spindle option on the BEST 1E cylinder for?
Some locks are driven by a spindle rather than a cam, so the 1E is offered with a standard spindle in place of the standard cam. Choose it when the lock case you are feeding takes a spindle drive; choose the standard cam for a 40/45H mortise lock, or the Adams Rite MS cam for an Adams Rite MS deadlock. One housing, three drive choices, specified at order.
20) For a facility standardizing on one mortise cylinder across many doors, how do the tapered and standard body styles compare to other mortise cylinders?
The BEST 1E Series is offered in standard mortise and tapered mortise body styles, in finishes from 605 bright brass and 626 satin chrome through 622 matte black and 690 statuary dark bronze, so one cylinder line can follow a facility's existing finish schedule while every door keys back into the same BEST system. Where a facility instead standardizes on a conventional mortise cylinder, the Adams Rite 4036 is a Grade 1 five-pin mortise cylinder good down to a 1/2 inch minimum door thickness, and the Corbin Russwin 1000 Grade 1 comes in 1-1/2 inch length with an A02 straight cam. The tradeoff is core swapping versus rekeying: the 1E lets a core be pulled and replaced at the door.
How fast can I get the BEST 1E74-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 1E74-C4RP3626-LC come with a warranty?
Absolutely. The BEST 1E74-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 1E74-C4RP3626-LC?
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 1E74-C4RP3626-LC from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!