Sargent 77-5978 LW1/KW1 Cylind...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$208.41
$150.68
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Sargent 77-5978 LW1/KW1 Cylinder and Lever Inside Escutcheon Replacement Part for Levers 31, 35, 36 in Bright Brass

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Model: 77-5978 26D

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

$208.41
$150.68
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Sargent 77-5978 LW1/KW1 Cylinder and Lever Inside Escutcheon Replacement Part for Levers 31, 35, 36 in Bright Brass

The Sargent 77-5978 is a commercial-grade inside escutcheon replacement part designed for use with LW1 and KW1 cylinder and lever configurations, specifically compatible with Sargent lever styles 31, 35, and 36. Finished in Bright Brass, this escutcheon is engineered to restore or complete the interior trim assembly on Sargent mechanical lock systems, maintaining both aesthetic consistency and secure hardware integration in commercial door applications.

Key Features

  • Precise Compatibility: Designed for LW1 and KW1 cylinder and lever configurations, ensuring a proper fit with Sargent lock systems.
  • Lever Style Compatibility: Compatible with Sargent lever styles 31, 35, and 36 for accurate replacement in matching hardware sets.
  • Inside Escutcheon Design: Functions as the interior trim plate, providing a clean and professional finish around the lever and cylinder on the interior side of the door.
  • Bright Brass Finish: Bright Brass finish delivers a polished, classic aesthetic suitable for commercial interiors requiring a traditional hardware appearance.
  • Commercial-Grade Quality: Manufactured as a genuine Sargent lock part, meeting the quality standards expected in commercial door hardware applications.
  • Replacement Part Convenience: Allows targeted replacement of the inside escutcheon without requiring full lock assembly replacement, reducing downtime and cost.

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: Escutcheons
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: 77-5978
  • Features: Sargent Lock Parts

Typical Applications

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

Why Sargent 77-5978?

Sargent replacement parts like the 77-5978 Inside Escutcheon are engineered to meet the exacting fit and finish standards of original Sargent mechanical lock assemblies. By sourcing a genuine Sargent component, facility managers and contractors can ensure proper integration with existing LW1/KW1 lever configurations and lever styles 31, 35, and 36, maintaining the integrity and appearance of the installed hardware without the need for a full assembly replacement.

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:
Escutcheons
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
77-5978
Features:
Sargent Lock Parts

Sargent 77-5978 26D – Frequently Asked Questions

1) Will the Sargent 77-5978 escutcheon fit my Sargent lever trim?
The 77-5978 is the inside escutcheon for LW1 and KW1 cylinder-and-lever trim, and it matches Sargent lever styles 31, 35 and 36. If your levers are one of those three on an LW1 or KW1 configuration, it drops in. Other Sargent lever designs use a different escutcheon, so check the lever style stamped on your existing trim before ordering.
2) Is the Sargent 77-5978 the inside or the outside escutcheon?
Inside only. The 77-5978 is the interior trim plate that surrounds the lever and cylinder on the room side of the door. If the damaged or mismatched plate is on the corridor side, this is not the part you need.
3) Can I replace just the escutcheon plate instead of the whole Sargent lock?
Yes. The 77-5978 is sold as a genuine Sargent replacement part, so a scratched, bent or wrong-finish inside plate can be swapped without pulling and rebuying the full lock assembly. That keeps the cylinder, keying and lever in service.
4) Can a Schlage CO Series escutcheon be used in place of the Sargent 77-5978 inside escutcheon?
No. The Sargent 77-5978 is a mechanical inside escutcheon made for LW1/KW1 cylinder and lever trim with Sargent lever styles 31, 35 and 36. The Schlage Electronics 47260707 is a CO Series exterior escutcheon for cylindrical and mortise locks on the CO100 keypad platform, and the 47260708 is a CO-100 keypad exterior escutcheon for exit trim in Aged Bronze. Both Schlage parts are keypad escutcheons for an electronic access control lock and carry no interface for a Sargent LW1/KW1 lever and cylinder, so they are not interchangeable with the 77-5978.
5) What finishes does the Sargent 77-5978 escutcheon come in?
Twelve finishes, so you can match what is already on the other doors: 03 bright brass clear coated, 04 satin brass clear coated, 09 bright bronze clear coated, 10 satin bronze clear coated, 10B dark oxidized satin bronze oil rubbed, 10BL dark oxidized satin bronze clear coated, 15 satin nickel plated clear coated, 20D dark statuary bronze lacquered, 26 bright chrome over nickel, 26D satin chrome over nickel, 32 bright stainless and 32D satin stainless. Order the same BHMA number as the rest of the trim and the plate will match.
6) Is the MS Sedco ESC escutcheon plate an alternative to the Sargent 77-5978?
No. The MS Sedco ESC is a decorative stainless escutcheon plate for R4 and R6 round switches, so it trims an actuator switch rather than a lock. The Sargent 77-5978 is a commercial inside escutcheon that completes the interior lever and cylinder trim on Sargent LW1/KW1 assemblies. They share the word escutcheon only; neither will fill the other's role on the door.
7) If my Sargent lock trim is damaged, do I have to replace the whole lockset or can I just swap the escutcheon?
The 77-5978 is sold as a replacement part specifically so the inside escutcheon can be changed on its own, without pulling and replacing the full Sargent lock assembly. It is a genuine Sargent component for LW1/KW1 cylinder and lever configurations with lever styles 31, 35 and 36, and it comes in twelve finishes including 03 Bright Brass Clear Coated, 26D Satin Chromium Plated Over Nickel and 32D Satin Stainless Steel, so the replaced plate can be matched to the rest of the hardware on the opening. The comparable keypad escutcheons from Schlage Electronics are tied to the CO Series electronic platform and do not offer that path on a mechanical Sargent lock.
8) Is the Sargent 77-5978 escutcheon rated for commercial traffic?
It is a commercial-grade part for Sargent mechanical lock systems, used in offices, schools, healthcare, retail, government buildings, multi-tenant residential and warehouses. It is not a residential-only trim plate.
How fast can I get the Sargent 77-5978 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 77-5978 26D come with a warranty?
Absolutely. The Sargent 77-5978 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 77-5978 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 77-5978 26D from ZenSupply?
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