Sargent 10-3121 Lock Body Repl...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$453.22
$299.35
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Sargent 10-3121 Lock Body Replacement Part for FW-10U65/68 in Satin Chrome

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Model: 10-3121 26D

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

$453.22
$299.35
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Sargent 10-3121 Lock Body Replacement Part for FW-10U65/68 in Satin Chrome

The Sargent 10-3121 is a commercial-grade replacement lock body designed for compatibility with the FW-10U65/68 series, finished in Satin Chrome. As a precision-manufactured lock case component, this replacement part is engineered to restore proper function to Sargent locking systems, maintaining the integrity and performance standards of the original assembly. Ideal for facility maintenance teams and door hardware professionals seeking a manufacturer-direct replacement for Sargent mechanical lock installations.

Key Features

  • OEM Compatibility: Designed specifically for use with FW-10U65/68 series Sargent lock assemblies, ensuring a precise fit and seamless integration with existing hardware.
  • Satin Chrome Finish: Factory-applied Satin Chrome finish matches original Sargent hardware aesthetics for a consistent, professional appearance.
  • Commercial-Grade Construction: Manufactured to Sargent's commercial product standards, delivering the durability and reliability expected in high-traffic commercial environments.
  • Direct Replacement Part: Serves as a drop-in lock body replacement, minimizing downtime and simplifying maintenance for facility managers and service technicians.
  • Lock Case Component: Classified as a Lock Case replacement part within the Sargent parts and accessories system, supporting long-term serviceability of installed Sargent hardware.

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: Lock Cases
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: 10-3121
  • Features: Sargent Lock Parts

Typical Applications

  • Commercial Office Buildings Requiring Lock Maintenance
  • Educational Facilities with Sargent Hardware Installations
  • Healthcare Institutions Servicing Existing Door Hardware
  • Retail Establishments Performing Preventive Maintenance
  • Government and Municipal Buildings with Sargent Mechanical Locks
  • Industrial and Warehouse Facilities Managing Hardware Upkeep
  • Multi-Tenant Residential Properties with Commercial-Grade Locking Systems

Why Sargent 10-3121?

Sargent lock parts are manufactured to the same exacting standards as original Sargent hardware, ensuring that replacement components like the 10-3121 lock body maintain the performance and security characteristics of the installed system. Choosing a manufacturer-genuine replacement part eliminates compatibility guesswork and supports the long-term reliability of commercial door hardware in demanding applications.

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:
Lock Cases
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
10-3121
Features:
Sargent Lock Parts

Sargent 10-3121 26D – Frequently Asked Questions

1) What exactly is the Sargent 10-3121 part?
The 10-3121 is the lock body (lock case) itself from Sargent, sold as a replacement part for FW-10U65/68 series lock assemblies. It is the internal case that drives the latch, not a complete lockset, so trim, cylinder, and strike are separate items you keep from the existing opening or order on their own.
2) Will the Sargent 10-3121 lock body work in my Sargent lock if it isn't an FW-10U65 or FW-10U68?
No. Sargent built the 10-3121 body specifically for FW-10U65/68 series assemblies. Sargent lock cases are function-specific, so a body pulled for a different series or function will not drop into place. Confirm the series stamped on the existing case before ordering this one.
3) Can I reuse my existing cylinder and lever trim when I swap in a Sargent 10-3121 lock body?
That is the point of buying the body on its own. The 10-3121 replaces only the lock case inside an FW-10U65/68 assembly, so the existing trim, cylinder, and door prep stay as they are and you avoid re-machining the door. If the trim or cylinder is what failed, this part will not fix it.
4) My Sargent lock still throws the latch but the lever feels loose. Do I need the 10-3121 lock body?
Not necessarily. The 10-3121 addresses a worn or failed lock case on an FW-10U65/68 assembly, meaning the internal mechanism that retracts the latch. Loose lever play often traces to the trim, spindle, or mounting screws rather than the case. Pull the lock and check whether the case itself binds or fails to retract before replacing it.
5) What finish does the Sargent 10-3121 lock body come in?
One finish only: 26D, satin chromium plated over nickel, which Sargent calls Satin Chrome. That is the standard commercial satin finish, so it matches existing 26D/US26D trim and hardware on the rest of the opening.
6) Is the Sargent 10-3121 rated for commercial door traffic or is it a residential part?
It is a commercial part. Sargent lists the 10-3121 under commercial mechanical lock hardware, which is why it turns up in schools, hospitals, offices, and multi-tenant buildings where the original Sargent lockset is already installed.
How fast can I get the Sargent 10-3121 26D 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 Sargent 10-3121 26D come with a warranty?
Absolutely. The Sargent 10-3121 26D 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 Sargent 10-3121 26D?
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 Sargent 10-3121 26D 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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