Corbin Russwin 103F45-8 UT5200...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$22.28
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Corbin Russwin 103F45-8 UT5200 Series Lever Return Spring for Pre-Assembled Unit Lockset, Left Hand

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Model: 103F45-8

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

$22.28
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Corbin Russwin 103F45-8 UT5200 Series Lever Return Spring for Pre-Assembled Unit Lockset, Left Hand

The Corbin Russwin 103F45-8 is a genuine OEM lever return spring designed specifically for the UT5200 Series Pre-Assembled Unit Lockset. This left-hand replacement spring ensures proper lever function by providing the controlled return action essential to reliable lockset performance. Engineered for commercial-grade door hardware applications, this part is an exact-fit replacement component for compatible UT5200 Series unit locksets.

Key Features

  • Exact-Fit Replacement: Designed specifically for the Corbin Russwin UT5200 Series Pre-Assembled Unit Lockset, ensuring proper fit and function without modification.
  • Lever Return Function: Provides the spring tension required for consistent and controlled lever return action, maintaining smooth lockset operation.
  • Left-Hand Configuration: Engineered for left-hand door applications, ensuring correct installation orientation and performance.
  • Genuine Corbin Russwin Component: OEM part manufactured to Corbin Russwin specifications for reliable compatibility and performance within the UT5200 Series system.
  • Commercial-Grade Application: Suited for commercial door hardware environments where dependable component performance is essential to ongoing security and access control.
  • Straightforward Serviceability: Allows targeted replacement of a worn or damaged spring without full lockset replacement, supporting cost-effective maintenance programs.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Rings, Spindles and Springs
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: 103F45-8
  • Features: Corbin Russwin Lock Parts

Typical Applications

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

Why Corbin Russwin UT5200?

Corbin Russwin UT5200 Series components are engineered to exact manufacturer specifications, delivering the precision fit and material quality required for reliable commercial lockset performance. As a genuine OEM replacement part, the 103F45-8 lever return spring integrates seamlessly with existing UT5200 Series hardware, supporting the long-term dependability that commercial facilities demand.

Manufacturer Resources

Product Specs

Department:
Door Hardware
Product Category:
Mechanical Locks
Product Group:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Rings, Spindles and Springs
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
103F45-8
Features:
Corbin Russwin Lock Parts

Corbin Russwin 103F45-8 – Frequently Asked Questions

1) Will the Corbin Russwin 103F45-8 spring work on a right-hand door?
No. The 103F45-8 lever return spring is the left-hand version, made to install in one orientation for left-hand door applications. Put a left-hand spring in a right-hand lockset and the lever return will not load correctly. Check the handing of the door before you order, and get the right-hand part number for RH openings.
2) Which Corbin Russwin locksets does the 103F45-8 lever return spring fit?
It is made for the Corbin Russwin UT5200 Series Pre-Assembled Unit Lockset, left hand. It is an OEM part cut to Corbin Russwin specs, so it drops into a compatible UT5200 unit lock without modification. It is not a universal lever spring and should not be used in other Corbin Russwin lock families.
3) My lever droops and won't return level. Do I need a whole new lockset?
A sagging lever on a UT5200 unit lock is usually the return spring, not the lock body. Replacing the 103F45-8 spring restores the controlled return action without pulling and replacing the entire lockset, which is the point of stocking it as a serviceable part. If the lever still drags after the spring swap, the problem is elsewhere in the chassis.
4) Is the 103F45-8 an OEM Corbin Russwin part or an aftermarket spring?
Genuine OEM. The 103F45-8 is manufactured to Corbin Russwin specifications as a UT5200 Series component, which matters on a spring because tension and geometry decide whether the lever returns properly. For facilities standardized on Corbin Russwin, this keeps the lock as-specified.
5) I'm buying springs for a building full of UT5200 locks. How do I order the right quantity?
Handing drives the count. The 103F45-8 covers left-hand openings only, so walk the building and tally LH versus RH doors rather than ordering one part number for the whole fleet. Order the left-hand springs by 103F45-8 and the right-hand equivalent separately.
6) Is this spring rated for commercial traffic or is it a residential part?
Commercial. The 103F45-8 is a commercial-grade door hardware component, used in offices, schools, healthcare, retail, industrial buildings, multi-tenant residential and government facilities where the lever gets cycled all day.
How fast can I get the Corbin Russwin 103F45-8 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 Corbin Russwin 103F45-8 come with a warranty?
Absolutely. The Corbin Russwin 103F45-8 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 Corbin Russwin 103F45-8?
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 Corbin Russwin 103F45-8 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.
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