Omnia 11904 Traditional Mortis...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$727.58
Omnia Omnia 11904 Traditional Mortise Lever Lockset With Plates, 10-5/8" Overall, 2-3/8" W, 2-5/8" Projection OMN-11904

Omnia 11904 Traditional Mortise Lever Lockset with Plates, Solid Brass, 10-5/8" Length

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Model: 11904/A3
From the Traditional Collection
$727.58
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$727.58
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Omnia 11904 Traditional Mortise Lever Lockset with Plates, Solid Brass, 10-5/8" Length

The Omnia 11904 Traditional Mortise Lever Lockset combines classic design with solid brass construction for lasting durability and elegant appearance. This residential-grade lockset features precise 10-5/8" overall length, 2-3/8" width, and 2-5/8" projection dimensions for proper door preparation and installation. Available in multiple finish options including US3, US15, and US26 to complement various architectural styles and hardware suites, this lockset is built for homeowners and installers who want dependable, professional-grade performance.

Key Features

  • Precise Dimensions: 10-5/8" overall length with 2-3/8" width and 2-5/8" projection for accurate door preparation and professional installation.
  • Solid Brass Construction: Traditional solid brass materials provide exceptional durability and corrosion resistance for long-term performance.
  • Mortise Lock Design: Professional mortise mechanism offers superior security and smooth operation compared to standard bored locksets.
  • Multiple Finish Options: Available in US3, US15, and US26 finishes to coordinate with existing hardware and architectural requirements.
  • Traditional Styling: Classic lever design complements traditional and transitional architectural styles for residential applications.
  • Complete Plate Assembly: Includes mounting plates for a comprehensive installation package and professional appearance.

Technical Specifications

  • MAP Policy: Yes
  • Collection: Traditional
  • Commercial/Residential: Residential
  • Department: Door Hardware
  • Handle Type: Lever
  • Lock Type: Mortise
  • Product Category: Mechanical Locks
  • Product Group: Mechanical Locks
  • Product Subgroup: Bored Locksets
  • Product Type: Mortise Locks
  • Subcategory: Deadbolts

Typical Applications

  • Residential Entry Doors
  • Interior Office Doors
  • Private Study and Library Doors
  • Master Bedroom Suites
  • Executive Home Offices
  • Traditional Style Homes
  • Historic Renovation Projects

Why Omnia 11904?

Omnia mortise locksets deliver residential-grade reliability with solid brass construction engineered for smooth operation and lasting performance. The traditional design and multiple finish options provide versatility for various architectural applications where dependable function and classic styling are essential.

Manufacturer Resources

Omnia 2026 Door Hardware Catalog

Product Specs

Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Mortise Locks
Subcategory:
Deadbolts
Commercial/Residential:
Residential
Lock Type:
Mortise
Handle Type:
Lever
MAP Policy:
Yes
Product Category:
Mechanical Locks
Collection:
Traditional
Department:
Door Hardware

Omnia 11904/A3 – Frequently Asked Questions

1) Is the Omnia 11904 handed, and how do I tell which hand I need?
Handing matters here. Left Handed and Right Handed are separate orders, and it is a required selection. Stand outside the door (the side you key or enter from): if the hinges are on your left, it is left hand; hinges on your right, right hand. Get this wrong on a mortise lock and the lever throw and latch bevel face the wrong way.
2) Which function of the Omnia 11904 do I need for a bedroom, an office, or a front door?
The 11904 lever lockset comes in eight functions and they cover different openings. Privacy for bedrooms and baths (inside turn, no key). Passage for halls and closets, latching only. Double Cylinder for an entry with glass nearby, keyed both sides. Storeroom for a room that stays locked outside and always exits free. Classroom for a door locked and unlocked by key from outside. Panic-Proof for an entry you want to leave from without hunting the turn. Single Dummy for one fixed pull, Pair Dummy for a set of double doors with no latch at all.
3) How much room does the Omnia 11904 escutcheon plate need on the door face?
The plate assembly measures 10-5/8 inches overall by 2-3/8 inches wide, with a 2-5/8 inch projection off the face. On a narrow stile or a door with glass close to the lock edge, lay that 2-3/8 inch width against the stile first. The 2-5/8 inch projection is what to check against a door that swings back against a wall or a return trim.
4) Is the Omnia 11904 rated for a commercial building or an apartment corridor?
Residential. The 11904 is a residential-grade solid brass lockset built for entry doors, interior offices, studies, and bedroom suites in houses and historic renovations. For a commercial corridor, classroom, or anything on a code-driven spec, look at a Grade 1 mortise instead: the Corbin Russwin ML2003 classroom mortise or the Cal-Royal NM8080 storeroom mortise are both listed Grade 1 for 1-3/4 inch doors.
5) Will the Omnia 11904 work on a classroom or school door?
Not the right pick. A Classroom function is offered on the 11904, but the lockset is residential grade, and school openings normally call for a Grade 1 mortise. For that, the Cal-Royal NM8070 is a Grade 1 classroom mortise for 1-3/4 inch doors, and the TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise with RFID for the same thickness if you want credential access.
6) The Omnia 11904 is residential grade - what mortise lockset should I specify for a school or commercial corridor instead?
For commercial traffic, move to a Grade 1 mortise lockset. The Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset in the ML2000 Series for 1-3/4 inch doors, and the Cal-Royal NM8070 is a Grade 1 heavy duty classroom mortise lockset with an auxiliary deadlatch, also for 1-3/4 inch doors. For a keyed storeroom opening, the Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series with an Arcadia lever, and the Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset offered with an interchangeable core option. The Omnia 11904 is a residential solid brass lever mortise lockset with traditional styling.
7) Is a Sargent 4874 mortise deadbolt a substitute for the double cylinder Omnia 11904?
No. The Sargent 4874 is a double cylinder mortise deadbolt in the 4870 Series on a 2-3/4 inch backset - a bolt only, with no lever and no latch. The Omnia 11904 double cylinder version is a full lever lockset with plates that both latches and locks the door. The Kaba Ilco 185 Series is likewise a deadbolt function mortise lock with no handing, so it does not replace a lever set either. Use a deadbolt alongside a latching set, not in place of one.
8) Does the Schlage PC10 work in the same door prep as the Omnia 11904?
No. The Schlage PC10 is a Grade 1 passage cylindrical lock with a rose for 1-3/4 inch doors - it goes into a bored cylindrical prep. The Omnia 11904 is a mortise lock, which needs a mortise pocket cut into the door edge. If the door is already prepped cylindrical, the Schlage PC10 fits and the 11904 does not without new prep.
9) Will an Omnia 11904 work on an aluminum storefront or ornamental iron door?
It is not the part for those doors. Narrow stile and iron doors take purpose-built bodies: the Marks USA 21AC and 22AC are entrance double cylinder ornamental iron mortise locks with a round knob, both listed for 1 inch door thickness, and the Alarm Lock DL1300NW is a Trilogy Networx wireless electronic mortise lock with a keypad built for Adams Rite deadlatches. The Dormakaba E-Plex 2066 is a wide stile electronic mortise lock. For a glass door bottom rail, the Kaba Ilco BR Series is the lock made for that rail. The Omnia 11904 is a solid brass residential lever mortise lockset with plates.
10) What finishes does the Omnia 11904 lever lockset come in, and can I match it across a whole house?
Three finishes across every function: Polished Brass, Satin Nickel Plated, and Polished Chrome Plated. Each one is offered in all eight functions, so you can run one finish through the front door, the bedroom privacy sets, the passage doors, and the dummy trim on a pair of doors without a mismatch anywhere in the house.
11) Should I use a mortise lockset like the Omnia 11904 or a bored cylindrical lock?
A mortise lock drops into a rectangular pocket cut into the door edge, which takes more machining than the two round holes a bored lock needs, but it puts a bigger lock case and a longer plate in the door. That is why it is the usual choice for a traditional entry or a historic renovation where the door already has a mortise pocket. If the door is bored for a cylindrical lock and you do not want it re-machined, a bored lock such as the Schlage PC10 passage is the retrofit; converting a bored door to mortise means new door prep or a new door.
12) What is the difference between the Single Dummy and Pair Dummy option on the Omnia 11904?
Neither one latches. Single Dummy is one fixed lever plate for a door that is held shut some other way, like a ball catch or a roller. Pair Dummy gives you both halves for a set of double doors where the active leaf carries the working lock and the inactive leaf just needs matching trim. Order Pair Dummy for the inactive leaf and you get the same 10-5/8 inch plate and finish as the working sets beside it.
13) I want a period-looking brass mortise entry set. What else is there besides the Omnia 11904?
On the decorative side, Emtek builds mortise entrance sets in the same traditional vein: the 3104 Hamilton and the 3102 Memphis are two of them, though those specific ones are the dummy configuration. Baldwin's 6301 lever-by-lever mortise lock body is an entrance/apartment function on a 2-1/2 inch backset for doors 1-3/4 inches and over, which matches the smaller of the two backsets the 11904 offers. Difference to weigh: the 11904 ships as a complete lever set with plates in three finishes and eight functions, while the Baldwin 6301 is a lock body.
14) Does the Omnia 11904 come with the plates or do I order those separately?
Plates are included. The 11904 ships as a complete assembly, lever and escutcheon plates together, in the finish you select. What you still specify at the time of order is the hand and the backset, both required, plus the function and finish.
15) Is the Double Cylinder version of the Omnia 11904 safe for an exterior door with a sidelight?
Double Cylinder means keyed on both sides, so nobody reaches through broken glass and turns a thumbturn. It also means you need the key to get out, which is a problem on a bedroom or a primary egress door in many jurisdictions. For an entry where you want free egress, the Panic-Proof or Storeroom function on the same lockset lets you leave without a key.
16) I only need a bed and bath privacy mortise lock - what else is there besides the Omnia 11904 privacy version?
The Omnia 11904 is ordered with a privacy function in solid brass. If the opening does not need brass trim, the Cal-Royal NM8440 is a Grade 1 heavy duty privacy mortise lockset with a deadbolt for 1-3/4 inch doors, and the Hager 3840S in the 3800 Series is a privacy/bed/bath mortise lock on a 2-3/4 inch backset for doors 1-3/4 inch to 2 inch. Both are single-function locks, where the 11904 covers privacy alongside storeroom, classroom, passage and dummy functions in one family.
17) What is a simpler alternative to the Omnia 11904 for a closet or hall door that never locks?
A dedicated passage mortise lock is the simpler buy. The Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors, the Hager 3810S is a 3800 Series passage mortise lock with a rose on a 2-3/4 inch backset for doors 1-3/4 inch to 2-1/2 inch, and the Hager 3810E is the same passage function with an escutcheon instead of a rose. The Falcon MA101 is a Grade 1 heavy duty passage/hall/closet mortise lock with field reversible operation and a fire rating. The Omnia 11904 also comes in a passage function and includes plates.
18) Which mortise dummy trim can I use in place of the Omnia 11904 dummy on an inactive leaf?
The Omnia 11904 is ordered as a single dummy or a pair dummy in solid brass with traditional styling. For a decorative brass alternative, Emtek offers mortise entrance dummy locksets in several designs: the 3019 Brisbane in brass, the 3102 Memphis, the 3104 Hamilton and the 3106 Manhattan. For a commercial lever dummy, the Schlage L0170 is a Grade 1 heavy duty half dummy trim in the L Series for 1-3/4 inch doors.
19) I want keypad or credential entry rather than a keyed Omnia 11904 - which mortise locks do that?
The Omnia 11904 is a mechanical lever mortise lockset with keyed functions such as double cylinder and storeroom. For electronic entry on a mortise prep, the Alarm Lock DL3500CR is a Grade 1 Trilogy electronic mortise lock with 300 user codes and a classroom function for doors 1-5/8 inch to 1-7/8 inch, and the DL2700CR is a Trilogy T2 Grade 1 classroom electronic mortise lock with a weatherproof design over the same thickness range. Dormakaba E-Plex 2066 is an electronic pushbutton keyless mortise lock, and the Schlage CO-100 is a Grade 1 heavy duty standalone electronic mortise lock with a keypad reader in a privacy function for 1-3/4 inch doors. For card and mobile credentials, the Dormakaba LX-I-M002 Saffire is an electronic RFID mortise lockset with BLE mobile access at BHMA Grade 2.
20) Are Sargent 130KB or 130W mortise thumbturns an alternative to the Omnia 11904?
They are not. The Sargent 130KB is a standard duty mortise thumbturn in the 8200 Series and the 130W is a mortise thumbturn with a round backplate in the 7800 Series - both are trim pieces that turn an existing mortise lock body, not locksets. The Omnia 11904 is a complete solid brass lever mortise lockset with plates. A thumbturn is what you add to a lock body already in the door.
21) For a healthcare or behavioral health opening, what replaces the Omnia 11904 lever?
Traditional brass levers are not the right trim for those rooms. The TownSteel MRX-L-01 is a Grade 1 heavy duty anti-ligature lever mortise lockset in stainless steel with a passage function for 1-3/4 inch doors, and the MRX-A-01 is the same passage function in satin stainless steel with ligature resistant arch trim. Where a push/pull is preferred, the Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset in satin stainless steel, ligature resistant and ADA compliant.
22) My opening needs access control tied to the building system - what mortise lock replaces a mechanical Omnia 11904 there?
The Omnia 11904 is a mechanical lockset with no electrical provision. For an electrified mortise opening, the BEST 45HW Series is a heavy duty wired electromechanical mortise lock running on 12V or 24V, and the Command Access ML190 Series is a heavy-duty motorized mortise lock with field selectable fail secure or fail safe operation on 24VDC in a storeroom function. Where request-to-exit monitoring is required, the Schlage L9092EU with 03A trim is a heavy duty corridor mortise lock with an electric lock/unlock outside lever, keyed outside, RX signalling, on 12/24VDC for 1-3/4 inch doors.
23) For an office or apartment entrance door, what are the alternatives to the Omnia 11904?
The Baldwin 6301 is a knob-by-knob entry/apartment mortise lock body on a 2-1/2 inch backset for doors 1-3/4 inch and over, and the 6310 is a knob-by-knob entrance/storeroom body on the same backset for doors 1-3/8 inch and over. On the commercial side, the Cal-Royal NM8050 is a Grade 1 heavy duty office/entrance mortise lockset with an auxiliary deadlatch for 1-3/4 inch doors, and the Hager 3850E is a 3800 Series office mortise lock with a lever and escutcheon, non-keyed, on a 2-3/4 inch backset for doors 1-3/4 inch to 2-1/2 inch. The Omnia 11904 is a lever set, so the Baldwin knob bodies change the trim style as well as the function.
24) Is a BEST 45H mortise lock body a drop-in for the Omnia 11904?
They are not the same kind of purchase. The BEST 45H is a heavy duty mortise lock body in a public entrance function with field reversible operation, and the 45HCA is a heavy duty lockbody with an intruder function - lock bodies, ordered with trim selected separately. The Omnia 11904 arrives as a complete lever lockset with plates in a chosen function, finish, handing and backset. Specify a body like the 45H only when you are matching existing trim or building a set from parts.
25) What mortise lock covers a dormitory or corridor door where the inside must always exit free?
The Sargent 7925 is a Grade 1 heavy duty mortise lock in the 7900 Series with a dormitory exit function, rose trim and a single cylinder deadbolt. The Omnia 11904 does not carry a dormitory function; its keyed options are double cylinder, storeroom and classroom in a residential solid brass lever set.
How fast can I get the Omnia 11904/A3 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 Omnia 11904/A3 come with a warranty?
Absolutely. The Omnia 11904/A3 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 Omnia 11904/A3?
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