Accentra 4730LN Grade 1 Instit...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$694.00
$263.44
Yale Commercial Yale 4730LN Grade 1 Institutional Double Cylinder Lever Lock Augusta Trim Design YAL-AU4730LN

Accentra 4730LN Grade 1 Institutional Double Cylinder Lever Lock with Augusta Trim Design

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Model: YAL-AU-4730LN-626
From the 4700 Series Collection
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$694.00
$263.44
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Accentra 4730LN Grade 1 Institutional Double Cylinder Lever Lock with Augusta Trim Design

Professional-Grade Cylindrical Lock for Institutional Applications

The Accentra 4730LN Grade 1 institutional lever lock delivers heavy-duty security for commercial applications requiring double cylinder operation. This ANSI/BHMA Grade 1 certified cylindrical lock features adjustable door thickness from 1-3/8" to 1-3/4", 2-3/4" standard backset, and 1/2" stainless steel latchbolt throw. UL fire-rated up to 3 hours and featuring heavy-gauge steel die-cast mechanism with zinc plating and chromate finish for exceptional durability in demanding institutional environments.

Professional Features & Benefits

  • ANSI/BHMA: A156.2, Series 4000 Grade 1
  • UL-cUL: UL-cUL fire-rated up to 3 hours
  • Windstorm: 4700LN Certified (refer to local codes)
  • Mechanism: Heavy-gauge steel, die-cast, zinc-plated, chromated
  • Backset: 2-3/4" standard
  • Latchbolt: 1/2" stainless steel throw standard
  • Guardbolt: Deadlocks latchbolt when door is closed; standard on all locking functions
  • Door Thickness: 4700LN adjustable from 1-3/8" to 1-3/4". 4700 adjustable from 1-3/4" to 2"
  • Fronts: 2-1/4" x 1-1/8" beveled standard; flat fronts available to order
  • Cylinders: Brass, 6-pin, keyed-random cylinder with two keys furnished standard, 7-pin not available.
  • Reversibility: Non-handed
  • Strikes: ANSI strike 4-7/8" x 1-1/4" x 1-1/4" lip to center supplied standard. Optional T-strike available to order for 4700LN.
  • Finishes: 4700LN available in 7 finishes, 4700 available in satin stainless steel (630) only.
  • Warranty: 5-year mechanical

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness compatibility (1-3/8" to 1-3/4"), backset requirements (2-3/4" standard), and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper cylinder and lever positioning.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions for cylindrical lock installation.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications, ensuring proper cylinder alignment.
  5. Adjust operational components for proper alignment, latching, and smooth lever operation throughout the full range of motion.
  6. Test device operation to verify proper function including guardbolt engagement and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Healthcare Institutions and Psychiatric Facilities
  • Correctional and Detention Centers
  • Educational Facilities and Schools
  • Government and Municipal Buildings
  • Commercial Office Buildings
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties

Why Choose Accentra Quality?

Accentra 4700LN Series lever locks deliver professional-grade reliability with heavy-gauge steel die-cast construction and ANSI/BHMA Grade 1 certification for demanding institutional applications. UL fire-rated up to 3 hours with comprehensive 5-year mechanical warranty coverage. Engineered for demanding commercial applications where dependable security performance and institutional-grade durability are essential.

Product Specs

Series:
4700 Series
Subcategory:
Cylindrical
Keyed Function:
Double Cylinder
Grade:
Grade 1
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Keyed:
Yes
Commercial/Residential:
Commercial
Handle Type:
Lever
Lock Function:
Asylum/Institution/Utility
Product Attribute:
Cylindrical Locks
Product Model:
YAL-4730LN
Collection:
4700 Series
Product Function:
Asylum/Institution/Utility
Lever Design Name:
Augusta Lever
Product Category:
Mechanical Locks
Department:
Door Hardware

Accentra YAL-AU-4730LN-626 – Frequently Asked Questions

1) Will the Accentra 4730LN lever lock fit a 1-3/4 inch door?
Yes. The 4730LN is built on the 4700LN chassis, which adjusts from 1-3/8 to 1-3/4 inches, so it covers both standard commercial 1-3/4 inch doors and the older 1-3/8 inch interior doors. If your doors run thicker, 1-3/4 to 2 inches, that is the plain 4700 chassis rather than the LN, and the 4700 only comes in satin stainless steel (630).
2) What does the asylum function on the Accentra 4730LN actually do, and where would I use it?
Double cylinder means a key cylinder on both sides and no free egress: the lever is locked from inside and outside at all times, and a key is required from either side to retract the latch. That is the asylum/institution/utility function, and it is used on utility closets, mechanical rooms, and controlled areas in psychiatric and correctional settings where you do not want anyone walking out through the door without a key. It is not appropriate on a required egress door.
3) Can I use the Accentra 4730LN on a fire-rated door?
Fire rated, UL and cUL listed up to 3 hours. The guardbolt deadlocks the latchbolt when the door closes, which is standard on all locking functions in the series. Note the egress side of it: this is a double cylinder lock with no free egress, so it belongs on utility and controlled openings, not on a door in the means of egress path.
4) Will the Accentra 4730LN latch into the strike that is already in my frame?
It ships with an ANSI strike, 4-7/8 x 1-1/4 inches with 1-1/4 inch lip to center, and the latchbolt has a 1/2 inch stainless steel throw. If your frame is already prepped for a standard ANSI 4-7/8 inch strike, the supplied one drops straight in. An optional T-strike is available to order on the 4700LN if your frame is prepped for that instead.
5) What backset does the Accentra 4730LN use, and do I have to specify handing?
2-3/4 inch backset is standard, which is the deeper of the two common commercial backsets. The lock is non-handed, so one part number works on a left or right hand door and you do not need to call handing when you order. The front is a 2-1/4 x 1-1/8 inch beveled front as standard, with flat fronts available to order.
6) What cylinder and keys come with the Accentra 4730LN, and can I get it keyed into my building master?
It comes with a brass 6-pin keyed-random cylinder and two keys as standard, on both sides since this is a double cylinder lock. 7-pin is not offered on the 4700LN. Keyed-random means each lock arrives on its own key, so if you need these keyed alike or into an existing master system, that has to be specified as a keying requirement when you order rather than assumed.
7) I need a classroom or storeroom lock instead of a double cylinder lock, what should I be looking at?
The 4730LN is the double cylinder asylum function, keyed both sides with no free egress, so it is the wrong choice if you want people to be able to walk out. For a classroom door, the Dexter C1000 Series classroom lever is Grade 1 with a clutching lever and fits 1-3/8 to 1-3/4 inch doors, and there is a classroom security version keyed both sides for lockdown. For a storeroom (always locked outside, always free inside), the Cal-Royal AG05 is a Grade 2 storeroom lever with a deadlocking latchbolt for 1-3/8 to 1-3/4 inch doors.
8) What is the closest equivalent to the Accentra 4730LN asylum lever lock from another manufacturer?
The Dexter C1000 Series Asylum (F87) cylindrical lock is the closest match. Like the Accentra 4730LN, it is a Grade 1 cylindrical lock in the Asylum/Institution/Utility function, so both cylinders must be keyed and neither lever retracts the latch without a key. The Dexter C1000 asylum lock covers doors from 1-3/8 inch to 2 inch, while the 4730LN is adjustable from 1-3/8 inch to 1-3/4 inch, so confirm the leaf thickness before swapping one for the other.
9) The door is 2 inches thick. What Grade 1 lever lock works instead of the Accentra 4730LN?
The 4730LN is adjustable from 1-3/8 inch to 1-3/4 inch, so a 2 inch leaf is outside its range. For a 2 inch door, the Corbin Russwin CL3110 passage lock covers 1-3/4 inch to 2 inch and is a Grade 1 fire-rated vandal resistant cylindrical lever, and the Falcon K101 Grade 1 passage lever covers 1-3/8 inch to 2-1/4 inch. Both are passage function, so a keyed opening on a 2 inch door needs a keyed model from those same series rather than the passage version.
10) What Grade 1 lever lock should be used on a classroom door instead of the Accentra 4730LN asylum lock?
An asylum function like the 4730LN keys both sides, which is not what a classroom needs. The Dexter C1000 Series Grade 1 classroom lever is keyed with a clutching lever and covers 1-3/8 inch to 1-3/4 inch, the same thickness range the 4730LN is adjustable through. Where the room must be secured from inside the classroom, the Dexter C1000 Grade 1 Classroom Security lever covers the same 1-3/8 inch to 1-3/4 inch range.
11) For an office door that needs to be locked and unlocked with a key from outside but always exit freely, what replaces the Accentra 4730LN?
The 4730LN is a double cylinder asylum function, keyed on both sides, so it does not free-egress by lever. For an office opening, the Dexter C1000 Series Grade 1 Entry/Office lever is keyed with a clutching lever and covers 1-3/8 inch to 1-3/4 inch. In Grade 2, the Falcon B511CP6D is a medium-duty entry/office cylindrical lever, and the Hager 2525 is a Grade 2 commercial entry lever covering 1-3/8 inch to 2 inch.
12) What should be used instead of the Accentra 4730LN when the lock needs to release on a fire alarm signal?
The 4730LN is a mechanical double cylinder lock with no electrical control. For an opening tied to access control or a fire alarm release, the Corbin Russwin CL33903 is a Grade 1 electrified fail safe cylindrical lever running 12VAC/DC and covering 1-3/4 inch to 2 inch doors, available with the NZ lever and D rose. Fail safe unlocks when power is removed, which is the behavior a release-on-alarm opening calls for.
13) Is the Accentra 4730LN heavy duty enough for a school or hospital corridor?
It is certified to ANSI/BHMA A156.2 Series 4000 Grade 1, the top commercial grade for cylindrical locks, with a heavy-gauge steel die-cast mechanism that is zinc plated and chromated. The 4700LN is also Windstorm certified (check it against your local code). That is the durability level specified for healthcare, correctional, education, and government facilities.
14) Can I standardize an entire facility on the Accentra 4700LN Series across different door functions?
Yes, and that is the usual reason to pick the series. The 4730LN is the asylum function within the 4700LN family, and the chassis, 2-3/4 inch backset, ANSI 4-7/8 inch strike prep, and 1-3/8 to 1-3/4 inch door range are shared across the LN functions, so the door prep stays identical from one opening to the next and you only change the function and finish. Seven finishes are offered across the 4700LN line, and the Augusta lever keeps the trim consistent.
15) Is the Accentra 4730LN a mortise lock or a bored cylindrical lock?
It is a bored cylindrical lock, so the door takes a standard cylindrical prep, a cross bore through the face plus an edge bore for the latch, not a mortise pocket. It will not drop into a door already prepped for a mortise lock without a filler or a new door. Model designation is 4730LN in the Accentra 4700 Series.
16) Is there a lighter-duty asylum function lock than the Accentra 4730LN?
Yes. The Arrow MK33-BD-CS is a Grade 2 asylum function cylindrical lock with a ball knob and a conventional cylinder in the Schlage C keyway, rated heavy duty within Grade 2. The Accentra 4730LN is Grade 1 with a lever handle. The two differ on trim as well as grade: the Arrow uses a knob, which is not an ADA-compliant operating trim, so it does not suit an opening where lever trim is required.
17) Can a Grade 1 dummy or passage lever be used in place of the Accentra 4730LN?
No. The BEST 9K Series 1DT is a Grade 1 heavy duty single dummy trim with no latch at all, and the Falcon T101 and Falcon K101 are Grade 1 heavy-duty passage levers that retract the latch from either side with no key. The 4730LN is keyed on both sides. These share the Grade 1 rating but not the security function, so they are trim and latching hardware, not a substitute for a keyed institutional lock.
18) Is a keypad or keyless lever lock an alternative to the Accentra 4730LN for a utility room?
They solve a different problem. The Lockey 2835 and 2835DC are mechanical pushbutton keyless lever locks with passage function covering 1-3/16 inch to 2 inch doors, and the Lockey 1150 heavy duty keypad lever set covers 1-1/8 inch to 2 inch. Those control entry by code with a free-turning inside lever. The 4730LN is a Grade 1 double cylinder lock requiring a key from both sides, so if the requirement is that the room cannot be left without a key in hand, a keyless passage lever does not meet it.
19) What finishes does the Accentra 4730LN Augusta lever come in?
Eight finishes: bright brass (605), satin brass (606), satin bronze (612), dark oxidized satin bronze equivalent (613E), bright chrome (625), satin chrome (626), plus black suede and white suede powder coat. For matching existing commercial openings, 626 satin chrome is the usual institutional standard. The lever itself is the Augusta design across all of them.
20) For a residential-grade interior door, is there a simpler lever than the Accentra 4730LN?
Yes, and for an interior door the 4730LN is far more lock than the opening needs. The Kwikset 200BRNL Breton passage lever is Grade 3 and covers 1-3/8 inch to 1-3/4 inch doors, and the Kwikset 300BRNL Breton privacy lever is Grade 3 over the same thickness range for a bed or bath. The Cal-Royal AUS00 is a Grade 3 entrance/office lever with a solid brass forged body covering 1-3/8 inch to 1-3/4 inch. All three carry a lower ANSI grade than the Grade 1 4730LN.
21) Does the Augusta lever on the Accentra 4730LN come from the same family as decorative levers like Baldwin or Emtek?
No, they answer different specifications. The Augusta lever on the 4730LN is trim on a Grade 1 keyed cylindrical lock. The Baldwin Estate 5103 with 5048 rose is offered in passage, privacy, and handed half dummy versions, and Emtek Classic and Arts and Crafts leversets are sold as dummy pairs. Those are decorative sets built around passage, privacy, and dummy functions, so none of them provide the double cylinder keying the 4730LN does.
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Does the Accentra YAL-AU-4730LN-626 come with a warranty?
Absolutely. The Accentra YAL-AU-4730LN-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 Accentra YAL-AU-4730LN-626?
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