Dormakaba 012-507220-K Outside...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$38.19
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Dormakaba 012-507220-K Outside Lever Extension Spring, 10-Pack Replacement Part for Commercial Mechanical Locks

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Model: 012-507220-K

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

$38.19
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Dormakaba 012-507220-K Outside Lever Extension Spring, 10-Pack Replacement Part for Commercial Mechanical Locks

The Dormakaba 012-507220-K Outside Lever Extension Spring is a genuine OEM replacement component engineered for commercial-grade mechanical lock applications. Sold in a convenient 10-pack, this spring ensures consistent lever return function and maintains the operational integrity of compatible Dormakaba locksets. Designed as a direct-fit replacement part, it is ideal for facilities maintenance teams, locksmiths, and service technicians who require reliable, brand-matched components for ongoing upkeep of door hardware installations.

Key Features

  • Genuine Dormakaba Replacement Part: OEM-sourced outside lever extension spring ensures precise fit and consistent performance in compatible Dormakaba mechanical lock assemblies.
  • Convenient 10-Pack Quantity: Supplied in a 10-pack format, making this ideal for stocking spare parts and reducing downtime during routine maintenance or emergency repairs.
  • Commercial-Grade Quality: Engineered for commercial applications, delivering the durability and reliability expected in high-traffic door hardware environments.
  • Direct-Fit Compatibility: Designed specifically for use with Dormakaba mechanical lock systems, supporting straightforward integration without modification.
  • Lever Return Function: Maintains proper outside lever return action, ensuring smooth and dependable operation of the lockset assembly.
  • Rings, Spindles and Springs Category: Classified as a precision internal component within the rings, spindles, and springs product type for mechanical lock maintenance.

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: 012-507220-K
  • Features: DormaKaba Parts and Accessories

Typical Applications

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

Why Dormakaba 012-507220-K?

Dormakaba replacement parts are manufactured to the same standards as original components, ensuring compatibility and sustained performance in commercial door hardware installations. The 012-507220-K Outside Lever Extension Spring delivers the precision fit required to restore proper lever function and extend the service life of Dormakaba mechanical locksets. For facilities requiring dependable, brand-matched components, this 10-pack offers both value and operational confidence.

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:
012-507220-K
Features:
DormaKaba Parts and Accessories

Dormakaba 012-507220-K – Frequently Asked Questions

1) What does the Dormakaba 012-507220-K spring actually do in the lock?
It is the outside lever extension spring, the internal spring that returns the outside lever to horizontal after it is turned. When a lever starts to sag or stops springing back, this is the part that has failed. It is a Dormakaba OEM replacement part for commercial mechanical locksets.
2) Will this Dormakaba spring fit a Schlage, Yale or Corbin Russwin lever lock?
No. The 012-507220-K is built specifically for Dormakaba mechanical lock assemblies and is a brand-matched internal component, so it should not be used as a substitute inside another manufacturer's chassis. Spring rate and free length in a lever return are lock-specific. For Corbin Russwin work we stock their own internals, such as the Corbin Russwin Swivel Spindle Pin X Set Screw.
3) My tenant's lever handle droops instead of springing back up. Is this the part I need?
That symptom points straight at the outside lever return spring, which is what the 012-507220-K is. It restores proper lever return action on compatible Dormakaba locksets. Confirm the lock body is Dormakaba first, since this spring is matched to their mechanical lock assemblies and not to other brands' chassis.
4) Can a Corbin Russwin swivel spindle pin and set screw be used in place of a Dormakaba 012-507220-K outside lever extension spring?
No. The Dormakaba 012-507220-K is an outside lever extension spring that restores lever return action in compatible Dormakaba mechanical locksets, and it is sold as a 10-pack. The Corbin Russwin part is a swivel spindle pin with set screw, which is the hardware that retains and drives a spindle rather than a return spring. They address different jobs inside the lock, so one does not fill in for the other. If the outside lever is sagging or failing to return, the spring is the part to order.
5) How many springs come in the Dormakaba 012-507220-K?
Ten. The 012-507220-K is sold as a 10-pack, which suits a maintenance shop stocking spares rather than a one-door repair. If you only have one sagging lever, you will have nine on the shelf for the next call.
6) Is the 012-507220-K a genuine Dormakaba part or an aftermarket copy?
Genuine OEM. It is a Dormakaba-sourced outside lever extension spring, which is why it drops into the lock chassis without modification. Aftermarket springs with the wrong rate are the usual cause of a lever that returns sluggishly after a repair.
7) Does the 012-507220-K cover the inside lever too?
No. It is specifically the outside lever extension spring. If the inside lever is the one sagging, you need the corresponding inside lever spring for that Dormakaba lock, not this part number.
8) For a 1-3/4 inch commercial door, which part covers a loose spindle versus a lever that will not return?
They are two separate repairs. A lever that no longer springs back to horizontal is a spring issue, and the Dormakaba 012-507220-K outside lever extension spring is the replacement part for that condition on compatible Dormakaba mechanical locks. A spindle that turns loose in the lever or slips at the hub points to the retaining hardware instead, which is what the Corbin Russwin swivel spindle pin and set screw addresses; that part is listed for a 1-3/4 inch door thickness. Diagnose which symptom you have before ordering, since the two parts are not interchangeable and belong to different lock lines.
9) Is this spring rated for commercial door traffic or is it a residential part?
Commercial. The 012-507220-K is classed as a commercial part and is intended for high-traffic door hardware in offices, schools, healthcare, retail, warehouses, multi-tenant residential and government buildings.
How fast can I get the Dormakaba 012-507220-K 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 Dormakaba 012-507220-K come with a warranty?
Absolutely. The Dormakaba 012-507220-K 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 Dormakaba 012-507220-K?
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 Dormakaba 012-507220-K 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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