Sargent 90 Mortise Cylinder Bl...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$13.87
Sargent 90 Mortise Cylinder Blocking Ring with Multiple Size Options

Sargent 90 Mortise Cylinder Blocking Ring with Multiple Size Options

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Model: SGT-90
From the Conventional Key System Collection
Selected Finish is

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

$13.87
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Sargent Mortise Cylinder Blocking Ring with Multiple Thickness Options

Professional Spacing Solution for Mortise Cylinder Applications

The Sargent Mortise Cylinder Blocking Ring provides precise spacing when mortise cylinders project from the door face, ensuring proper fit with 1KB rosettes. Available in five thickness options from 1/16" to 3/8", this professional-grade spacer accommodates various door and cylinder configurations with premium brass, bronze, or stainless steel construction and multiple finish options for seamless integration.

Professional Features & Benefits

  • Multiple Thickness Options: Available in 1/16", 1/8", 3/16", 1/4", and 3/8" sizes to accommodate various projection requirements and door configurations.
  • Premium Material Construction: Available in brass, bronze, or stainless steel for exceptional durability and corrosion resistance in commercial applications.
  • 1KB Rosette Compatibility: Specifically designed for use with 1KB rosettes to provide proper spacing when mortise cylinders project from door face.
  • Extensive Finish Selection: Multiple finish options including 3, 4, 10, 10B, 10BE, 10BL, 20D, 26, 26D, 32, 32D, BSP, and WSP for seamless hardware coordination.
  • Professional Specification System: Order using #90 x size x finish format for precise specification and consistent results.
  • Commercial-Grade Application: Engineered for demanding commercial door hardware installations requiring precise cylinder positioning.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

This spacing component is designed for use with compatible mortise cylinder and rosette assemblies. Refer to the parent device installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware before installation.

Professional Applications

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

Why Choose Sargent Quality?

Sargent mortise cylinder accessories deliver professional-grade reliability with premium brass, bronze, and stainless steel construction for demanding commercial applications. The comprehensive range of sizes and finishes ensures proper fit and aesthetic coordination with existing door hardware systems where dependable performance and precise spacing are essential.

Product Specs

Product Type:
Mortise Rose
Product Group:
Mechanical Locks
Product Subgroup:
Parts and Accessories
Subcategory:
Parts and Accessories
Commercial/Residential:
Commercial
Collection:
Conventional Key System
Series:
90 Series
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Category:
Mechanical Locks
Department:
Door Hardware

Sargent SGT-90 – Frequently Asked Questions

1) What does a Sargent 90 blocking ring actually do on a mortise lock?
It's a spacer that sits behind the cylinder collar. When a mortise cylinder screws in and still stands proud of the door face, the 90 blocking ring takes up the gap so the 1KB rosette seats flat instead of standing off the door. It's not a trim ring you pick for looks, it's a shim you pick by how far the cylinder projects.
2) What thickness Sargent 90 blocking ring do I need for my cylinder?
Five thicknesses are made: 1/16, 1/8, 3/16, 1/4, and 3/8 inch. Measure how far the cylinder face stands off the door once it's threaded in to the depth you want, then pick the ring that closes that gap. Mortise cylinders are furnished in 1/8 inch length increments, so the ring sizes step the same way and one of them will land on your gap.
3) How do I write the part number for a Sargent 90 cylinder ring?
Order it as #90 x size x finish. So a 1/8 inch ring in satin chrome is #90 x 1/8 x 26D. Leave the size out and the order stalls, since the thickness is the whole point of the part.
4) Will a blocking ring fix a mortise cylinder that sticks out too far from the door?
No, and this is the part people get backwards. A blocking ring adds material behind the rosette, it doesn't pull the cylinder in. If the cylinder projects too far, you need a shorter cylinder. The 90 ring is for the opposite problem, closing the space so the rosette sits tight against the door face.
5) Does the Sargent 90 blocking ring work with any rosette?
It's made for the 1KB rosette. If the opening uses a different Sargent collar or an escutcheon-style trim, confirm what that trim calls for before ordering the 90.
6) What finishes does the Sargent 90 blocking ring come in, and can I match the rest of my door hardware?
Fourteen finishes: 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze, 10B oil rubbed dark oxidized bronze, 10BE dark oxidized satin bronze, 10BL dark oxidized satin bronze clear coated, 14 bright nickel, 15 satin nickel, 20D dark statuary bronze, 32 bright stainless, 32D satin stainless, plus BSP black suede and WSP white suede powder coat. Order the ring in the same finish code as the lock trim, since the ring is visible behind the rosette edge.
7) Does the Sargent 90 blocking ring fit conventional key system cylinders?
It's part of Sargent's Conventional Key System line, so it suits standard Sargent mortise cylinders. It's a spacer only, with no keyway or cam involvement, so keying and keyway choice on the cylinder are unaffected by which ring you pick.
8) I'm replacing a worn cylinder collar on a Sargent mortise lock, is the 90 the same part?
Not quite. The 90 is a blocking ring, a flat spacer that goes under the rosette. It's stocked as a replacement part, so if a previous installer used one and it's damaged or the wrong thickness, you can order a matching size and finish on its own without touching the cylinder or the lock body.
9) Is the Sargent 90 ring suitable for a high traffic commercial opening?
Yes. It's a commercial door hardware part, made in brass, bronze, or stainless steel depending on finish, so it holds up in schools, hospitals, offices and multi-tenant buildings. For exterior or washdown openings the stainless finishes (32, 32D) are the ones that resist corrosion best.
How fast can I get the Sargent SGT-90 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 SGT-90 come with a warranty?
Absolutely. The Sargent SGT-90 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 SGT-90?
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 SGT-90 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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