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BEST 5E Series Cylinder Rings - Replacement Parts for E Series Cylinders
Model: BES-5ER7
BEST 5E Series Cylinder Rings - Replacement Parts for E Series CylindersProfessional Replacement Components for BEST E Series CylindersBEST 5E Series Cylinder Rings provide essential replacement...
BEST
$9.50
$8.79
BEST 5E Series Cam Screw Lock Washer - Replacement Part for E Series Cylinders
Professional Replacement Component for E Series Cylinder Systems
The BEST 5E Series Cam Screw Lock Washer is a precision-engineered replacement component designed specifically for E Series cylinder applications. This essential washer ensures proper cam screw retention and optimal cylinder performance in residential mechanical lock systems. Manufactured to BEST’s exacting standards, this component maintains the reliability and security of your E Series cylinder installation.
Professional Features & Benefits
- Series-Specific Design: Engineered exclusively for 5E Series cylinders to ensure perfect fit and optimal performance.
- Precision Manufacturing: Manufactured to exact BEST specifications for consistent quality and reliable operation.
- Essential Component Function: Provides critical cam screw retention to maintain proper cylinder operation and security.
- Professional-Grade Materials: Constructed from durable materials designed to withstand repeated use in residential applications.
- Easy Replacement: Designed for straightforward installation during cylinder service or maintenance procedures.
- Quality Assurance: Backed by BEST’s commitment to precision hardware manufacturing and reliability.
Technical Specifications
- Collection: E Series Cylinders
- Commercial/Residential: Residential
- Department: Door Hardware
- PDF:E Series Service Manual: https://zensupply.com/content/pdf/best/E-Series-Service-Manual.pdf
- Parts and Accessories Type: Replacement Parts
- Product Attribute: Parts and Accessories
- Product Category: Mechanical Locks
- Product Group: Parts and Accessories
- Product Subgroup: Parts and Accessories
- Product Type: Washer
- Series: 5E Series
- Subcategory: Parts and Accessories
Installation & Operation
This replacement washer is designed for use with compatible E Series cylinders. 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
- Cylinder Service and Repair
- Property Management Maintenance Programs
- Locksmith Service Applications
- Multi-Unit Residential Properties
- Home Security System Upgrades
Why Choose BEST Quality?
BEST replacement components deliver professional-grade reliability with precision manufacturing designed for demanding residential applications. Each component is engineered to exact specifications to maintain the integrity and performance of your E Series cylinder system. BEST’s commitment to quality ensures dependable operation where security and reliability are essential.
Manufacturer Resources
E Series Service Manual
Product Specs
- Series:
- 5E Series
- Subcategory:
- Parts and Accessories
- Product Group:
- Parts and Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- Washer
- 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 5ELW – Frequently Asked Questions
1) What exactly is the BEST 5ELW part and what does it do?
The 5ELW is a cam screw lock washer for BEST E Series cylinders. It sits under the cam screw and keeps that screw from backing out, so the cam stays tight to the cylinder and the lock keeps turning the way it should. It is a small service part, not a cylinder or a cam on its own, so if your cam or screw is also damaged you need those pieces separately.
2) Will the 5ELW washer fit any BEST E Series cylinder, or only the 5E?
It is specified for the 5E Series within the BEST E Series cylinder family. BEST builds several E Series cylinder sizes and types, so before you order for a mortise, rim or knob cylinder that is not a 5E, match the part against the BEST E Series Service Manual for that cylinder.
3) Can a Corbin Russwin 147F84-9 washer be used in place of the BEST 5ELW cam screw lock washer?
No. The BEST 5ELW is a cam screw lock washer made specifically for BEST E Series cylinders, and BEST engineers it to that series so the cam screw retains correctly. The Corbin Russwin 147F84-9 is also a washer, but it is an ED6000 exit device part, not a cylinder cam screw component. They serve different assemblies, so order the 5ELW when you are servicing an E Series cylinder and the 147F84-9 only when you are rebuilding an ED6000 device.
4) Do I need to rekey or repin the cylinder to replace the cam screw lock washer?
No. Swapping the lock washer is a cam-end job: back off the cam screw, replace the washer, retorque. The pinning stack and the core are untouched, so the keying stays exactly as it was. BEST's E Series Service Manual covers the cam and screw sequence if you want the order of operations in front of you.
5) My apartment cylinders keep loosening up at the cam. Is this the fix?
A cam that works loose is usually the cam screw backing out, and the lock washer is the part that stops it. For a property manager running a lot of BEST E Series cylinders, buying these as a maintenance stock item is cheaper than pulling and replacing whole cylinders. The 5ELW is catalogued for residential use, which is where most multi-unit E Series cylinder work sits.
6) Both the BEST 5ELW and the Corbin Russwin 147F84-9 are listed as washers - what actually differs?
The function name is the same on both: each is a washer. The difference is the host hardware. The 5ELW is a cam screw lock washer tied to the BEST 5E Series cylinder platform and is stocked as a replacement part for cylinder service and repair. The Corbin Russwin 147F84-9 is a Grade 1 ED6000 washer, meaning it is part of an exit device assembly. Match the washer to the brand and device you are opening up rather than to the word washer.
7) Should I order a lock washer or just reuse the old one when servicing a BEST cylinder?
Replace it. A lock washer works by deforming against the screw and the seat; once it has been torqued down and backed off, the tension it holds is reduced and the screw is more likely to loosen again. These are inexpensive service parts, so pull a new one for every cylinder you open.
How fast can I get the BEST 5ELW 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 5ELW come with a warranty?
Absolutely. The BEST 5ELW 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 5ELW?
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 5ELW 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.