Corbin Russwin 447F43 Standard...
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Corbin Russwin 447F43 Standard Diameter Cylinder Collar, Solid Recessed, Bright Brass Replacement Part for Cylinder Head

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Model: 447F43 626

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

$36.38
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Corbin Russwin 447F43 Standard Diameter Cylinder Collar, Solid Recessed for Cylinder Head, Bright Brass Replacement Part

The Corbin Russwin 447F43 is a standard diameter cylinder collar engineered for precise, solid recessed installation against the cylinder head. Featuring a 0.375" profile, this commercial-grade replacement part is finished in Bright Brass and is recognized as the successor to legacy Corbin Russwin part numbers 575 9/16 and 910-9. Designed to deliver a clean, professional fit within cylindrical lock assemblies, it is a purpose-built component for maintaining the performance and appearance integrity of Corbin Russwin cylinder hardware.

Key Features

  • Precise Profile Dimension: 0.375" collar depth provides an accurate recessed fit against the cylinder head for a flush, professional finish.
  • Solid Construction: Solid collar design ensures structural integrity and consistent contact with the cylinder head, preventing loosening or misalignment over time.
  • Recessed for Cylinder Head: Purpose-engineered recess accommodates the cylinder head profile for a secure, stable interface in standard diameter cylinder applications.
  • Bright Brass Finish: Bright Brass finish delivers a polished, classic aesthetic that coordinates with matching Corbin Russwin hardware and trim.
  • Legacy Part Number Compatibility: Replaces prior Corbin Russwin part numbers 575 9/16 and 910-9, simplifying sourcing for maintenance and retrofit projects.
  • Commercial-Grade Replacement Part: Classified as a commercial replacement component, suitable for demanding institutional and commercial lock maintenance applications.

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: Cylinders
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: 447F43
  • Features: Corbin Russwin Cylinder Parts

Typical Applications

  • Commercial Office Building Lock Maintenance and Replacement
  • Educational Facility Cylinder Hardware Servicing
  • Healthcare Institution Door Hardware Retrofits
  • Government and Municipal Building Lock Repairs
  • Multi-Tenant Residential Property Hardware Upkeep
  • Hospitality and Hotel Door Hardware Maintenance
  • Industrial and Warehouse Facility Lock Component Replacement

Why Corbin Russwin 447F43?

Corbin Russwin cylinder components are built to exact commercial tolerances, ensuring reliable fit and function in professional lock assemblies. The 447F43 collar's solid, recessed design and 0.375" profile reflect Corbin Russwin's commitment to precision-engineered replacement parts that maintain the integrity of the original installation. As a direct successor to legacy part numbers 575 9/16 and 910-9, the 447F43 simplifies procurement for service professionals managing Corbin Russwin cylinder hardware across commercial facilities.

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:
Cylinders
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
447F43
Features:
Corbin Russwin Cylinder Parts

Corbin Russwin 447F43 626 – Frequently Asked Questions

1) What does the Corbin Russwin 447F43 cylinder collar actually do?
The 447F43 is a standard diameter cylinder collar that sits recessed against the cylinder head in a Corbin Russwin cylinder assembly. It is a solid collar (not split or spring-type) with a 0.375 inch profile, so it takes up space between the cylinder and the trim and gives a flush, finished look at the face of the lock. It is a replacement part, not a cylinder itself, so it contains no pins, no key, and no core.
2) I have an old Corbin Russwin part number 575 9/16 or 910-9 on my work order. Is the 447F43 the right replacement?
Yes. Corbin Russwin superseded both 575 9/16 and 910-9 with the 447F43 collar, so a spec or service record calling out either legacy number is filled with the 447F43 in the finish you need.
3) Does the 447F43 collar come with a cylinder, or do I have to order the cylinder separately?
Collar only. The 447F43 is a trim ring for the cylinder head, so you order the cylinder, core and keys separately. If what you actually need is a replacement cylinder, the mortise and rim cylinders are a different item entirely, for example a Schlage 20-021 rim cylinder or a BEST 1C series core.
4) Does the Corbin Russwin 447F43 include a keyed cylinder, or do I need to order the cylinder separately?
The 447F43 is a standard diameter cylinder collar only - a solid recessed trim ring with a 0.375 inch profile that seats against the cylinder head. There is no plug, no pins and no keys with it, so the keyed cylinder itself is a separate order. If what you actually need is a keyed unit, the Schlage 20-021 is a 6-pin rim cylinder supplied with a vertical tailpiece cam and 2 keys, and the Schlage 20-022 is the same 6-pin rim cylinder with a horizontal tailpiece cam and 2 keys.
5) I am replacing an old Corbin Russwin 575 9/16 or 910-9 collar - what do I order now?
The Corbin Russwin 447F43 is the successor to both legacy part numbers 575 9/16 and 910-9. It is the same standard diameter solid recessed collar function, carried in six finishes: 605 Bright Brass, 606 Satin Brass, 612 Satin Bronze, 613 Satin Bronze Oil-Rubbed, 625 Bright Chrome and 626 Satin Chrome, so you can match the surrounding trim on the door.
6) What finishes does the Corbin Russwin 447F43 collar come in, and how do I match the rest of my door hardware?
Six finishes, called out by BHMA number: 605 Bright Brass, 606 Satin Brass, 612 Satin Bronze, 613 Satin Bronze Oil-Rubbed, 625 Bright Chrome, and 626 Satin Chrome. If you are matching existing Corbin Russwin trim, order the collar in the same BHMA number that is stamped or specified on the lock rather than matching by eye, since 605 and 625 both read as bright and 606, 612 and 626 all read as satin.
7) Will the 447F43 collar fit a small format interchangeable core cylinder?
It is sized for a standard diameter Corbin Russwin cylinder head, which is what the collar recesses against. Interchangeable core products such as the BEST 1CB or the Schlage 20-057 FSIC cylinder use their own housings and trim, so the 447F43 is not the part to order for those. Match the collar to a standard diameter Corbin Russwin cylinder.
8) My cylinder sits slightly proud of the trim. Will a 0.375 inch collar take up that gap?
The 447F43 adds 0.375 inch of collar depth at the cylinder head. If your gap is close to that, this collar closes it; if the cylinder is proud by a noticeably different amount, the fix is usually cylinder length rather than a thicker collar, since the collar profile on the 447F43 is fixed at 0.375 inch across all six finishes.
9) My facility is standardizing on interchangeable core - is the 447F43 collar part of that changeover?
No. The 447F43 is a commercial replacement collar that dresses the cylinder head; it does not determine the keying system. For an interchangeable core program the relevant parts are the cores and housings themselves - for example the BEST 1CB in the 1CB Series, the BEST 1CDF drill resistant 7-pin brass core in the 150 Series, or the Schlage 20-057 6-pin full size interchangeable core rim cylinder with convertible tailpiece cam. The collar is trim that can stay in place regardless of which core system you adopt.
10) Will the 447F43 collar work on an aluminum storefront deadlock?
The 447F43 is a Corbin Russwin standard diameter collar made to sit recessed against a Corbin Russwin cylinder head, so it is matched to that hardware rather than to storefront deadlock prep. For aluminum storefront work the Adams Rite 4036 is a Grade 1 mortise cylinder in the 4036 Series with a 1/2 inch minimum door thickness, and the Adams Rite 4024 cylinder pull with trim plate mounting and the 4025 five pin tumbler cylinder pull with through-screws are both made for the Adams Rite MS1847 deadlock and deadlatch.
11) I need to rekey a key-in-knob or key-in-lever lock, not dress it - what should I be looking at instead of the 447F43?
The 447F43 is a collar, a trim component with a 0.375 inch profile that provides a flush finish at the cylinder head and has no effect on keying. To replace the working cylinder in knob or lever locks, the Kaba Ilco 1539 is a key-in-knob and lever universal cylinder, the 1599 is a key-in-knob replacement cylinder, the 1579 is a knob and lever cylinder for Sargent, and the Falcon A23161-05 G is a key-in-lever cylinder with a 6-pin G keyway supplied keyed different with 2 cut keys.
12) Is this collar rated for commercial traffic or is it a residential part?
It is classified as a commercial component, which is why it turns up in office, school, healthcare, government, hotel and multi-tenant maintenance work. The solid collar body holds contact against the cylinder head instead of backing off over time, which is the failure mode facility crews see on thin stamped rings.
13) I am standardizing collars across a building. Can I order the 447F43 in one finish for all doors?
Yes, and that is the common way property and facility teams buy it. Pick one BHMA finish number from the six offered and use it building-wide, since the collar itself is the same 0.375 inch solid recessed part in every finish. Only the finish changes.
14) Is a dummy cylinder like the BEST 12E the same idea as the 447F43 collar?
They are different parts. The BEST 12E is a dummy rim cylinder in the 12E Series with a 1-5/32 inch diameter - a non-functioning cylinder body that fills a rim prep. The Corbin Russwin 447F43 is a solid recessed collar that rings a working cylinder head to close the gap and give a finished appearance, and it comes in six finishes from Bright Brass through Satin Chrome to match the trim around it.
How fast can I get the Corbin Russwin 447F43 626 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 447F43 626 come with a warranty?
Absolutely. The Corbin Russwin 447F43 626 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 447F43 626?
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
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