Marks USA MAR175RAB 175RAB IC ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$160.34
$80.82
Marks USA 175RAB IC Entry Lever Lockset - Grade 2 Survivor Series, American Lever, IC Less Core, Entry

Marks USA MAR175RAB 175RAB IC Entry Lever Lockset — Grade 2 Survivor Series, American Lever, IC Less Core

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Model: 175RAB26D-3/4
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$160.34
$80.82
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Marks USA 175RAB IC Entry Lever Lockset — Grade 2 Survivor Series, American Lever, IC Less Core

The Marks USA 175RAB is a Grade 2 cylindrical lever lockset from the Survivor Series, engineered for Entry function with an Interchangeable Core (IC) Less Core configuration. Built on a chassis featuring cast retractors on bronze roller bearings, this lockset is rated to exceed BHMA Grade 1 specifications by 300% — surpassing 3.6 million cycles — making it an exceptional choice for high-traffic commercial applications. It accommodates 2-3/8" and 2-3/4" backsets and is 3-Hour fire rated, with door thickness compatibility of 1-5/8" to 1-7/8" (use K1904 spacer for 1-3/8" doors).

Key Features

  • Exceptional Cycle Rating: Exceeds BHMA Grade 1 specifications by 300%, tested to over 3.6 million cycles for outstanding long-term reliability in demanding commercial environments.
  • Unique Clutch Mechanism: The Survivor Series features a stainless steel "clutch" that disengages levers from the retractor and interior mechanisms when locked, allowing levers to swing freely without resistance — dramatically reducing wear, abuse, and lever droop.
  • Bronze Roller Bearing Construction: Cast retractors on bronze roller bearings provide a strong, durable chassis foundation available in both knob and lever configurations.
  • Backset & Door Compatibility: Supports 2-3/8" and 2-3/4" backsets; compatible with door thicknesses of 1-5/8" to 1-7/8"; use K1904 spacer for 1-3/8" doors.
  • Latch Specifications: Latch #1134 with 1-1/8" x 2-1/4" front, 1/2" throw, and stainless steel nose for corrosion resistance and smooth operation.
  • Solid Cast Zamac Levers: American-style levers are solid cast Zamac with 1/2" return, mounted on thru-bolted roses (3-1/4" dia.) with spring-loaded 2-#10 thru-bolts for secure, stable installation.
  • 3-Hour Fire Rated: Certified 3-Hour fire rating supports use in fire-rated door assemblies for code-compliant commercial installations.
  • Marks Lifetime Mechanical Warranty: Backed by Marks USA's lifetime mechanical warranty for long-term confidence and lower total cost of ownership.

Certifications & Compliance

  • ANSI/BHMA Certified
  • UL Listed
  • Exceeds BHMA Grade 1 by 300% (3.6 million cycles)
  • 3-Hour Fire Rated
  • ADA Compliant
  • Marks USA Lifetime Mechanical Warranty

Technical Specifications

  • Series: 175 Series
  • Product Group: Mechanical Locks
  • Product Subgroup: Bored Locksets
  • ANSI/BHMA: ANSI/BHMA, UL Listed
  • Commercial/Residential: Commercial
  • Function Description: Outside knob/lever locked by pushbutton on inside knob/lever. Rotating inside knob/lever or closing door releases/unlocks button. Emergency release in outside knob/lever.
  • ADA Compliant: Yes
  • Keyed: No
  • ANSI Function: F76
  • Product Function: Privacy/Bed/Bath
  • Door Thickness Range: 1-3/4"
  • Strike Classification: ANSI, 1-1/4" x 4-7/8", 1-1/4" Lip, Square Corner
  • Product Category: Mechanical Locks
  • Department: Door Hardware

Typical Applications

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

Why Marks USA 175RAB?

Marks USA 175 Series Survivor locksets are built with solid cast Zamac levers, bronze roller bearings, and a proprietary stainless steel clutch mechanism that sets them apart from standard cylindrical lever sets. Rated to exceed BHMA Grade 1 by 300% at over 3.6 million cycles and carrying a 3-Hour fire rating, these locksets deliver professional-grade performance and durability for the most demanding commercial door applications.

Manufacturer Resources

Marks USA Product Catalog

Product Specs

Series:
175 Series
Latch Throw:
1/2"
Grade:
Grade 2
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Cylindrical Locks
Subcategory:
Cylindrical Locks
ANSI/BHMA:
ANSI/BHMA, UL Listed
Commercial/Residential:
Commercial
Lock Type:
Cylindrical
Function Description:
Outside knob/lever locked by pushbutton on inside knob/lever. Rotating inside knob/lever or closing door releases/unlocks button. Emergency release in outside knob/lever.
Front Size:
1-1/8” x 2-1/4”
ADA Compliant:
Yes
Keyed:
No
ANSI Function:
F76
Product Attribute:
Cylindrical Locks
Product Function:
Privacy/Bed/Bath
Door Thickness Range:
1-3/4"
Strike Classification:
ANSI, 1-1/4" x 4-7/8", 1-1/4" Lip, Square Corner
Product Category:
Mechanical Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

Marks USA 175RAB26D-3/4 – Frequently Asked Questions

1) Is the Marks USA 175RAB keyed, or is it a pushbutton privacy lock?
It is not a keyed lock. The 175RAB works as a pushbutton function: the outside lever is locked by a pushbutton on the inside lever, and rotating the inside lever or closing the door releases the button. There is an emergency release in the outside lever. That is ANSI function F76, the bed/bath privacy function. If you need a lock that takes a key from the corridor side for an office or entry opening, this is the wrong part.
2) I need the same lever family but with a key on the outside, or with a keypad. What else can I use?
The 175RAB is a non-keyed pushbutton function, so for a keyed opening look at a different set. The Dorma C853 is a keyed entry, single cylinder lever lockset, Grade 1, covering 1-3/8 to 2-1/4 inch doors, and the Dorma C150 is a Grade 1 entry/office cylindrical lock over the same thickness range. If you want code access instead of a key on a privacy-type opening, the Alarm Lock Trilogy 4100 is a Grade 1 electronic cylindrical lock with a privacy function for 1-5/8 to 1-7/8 inch doors, and the Schlage CO-100 is a Grade 1 heavy duty standalone keypad lock, privacy function, for 1-3/4 inch doors.
3) What is a straight Grade 2 privacy lever equivalent to the Marks USA 175RAB?
The Orca Hardware OCL240 is a Grade 2 cylindrical lockset in Privacy/Bed/Bath function, the same grade and function the Marks USA 175RAB carries. The OCL240 is a medium duty lockset, while the 175RAB is built on a chassis with cast retractors on bronze roller bearings and a stainless steel clutch that disengages the levers when locked. Both are non-keyed privacy sets for bed and bath openings.
4) What lever set matches the 4-7/8 inch ANSI strike prep already in my frames?
The Marks USA 175RAB uses an ANSI 1-1/4 inch x 4-7/8 inch strike with a 1-1/4 inch lip and square corner. The Stanley Security QCL150 entry lever also uses an ASA strike of 4-7/8 inch x 1-1/4 inch with a square 2-3/4 inch backset latch, so both drop into the same frame prep. The QCL150 is an entrance function lever less cylinder; the 175RAB is a non-keyed privacy set.
5) Can I use a Marks USA 175RAB privacy lever on a fire-rated door?
Yes. The 175 Series lockset is ANSI/BHMA certified and UL Listed, and the 175RAB is commercial-duty hardware. Note the function though: a pushbutton privacy lever is normally specified for restrooms, patient rooms and dorm rooms rather than for a rated corridor opening that has to stay latched and keyed. Confirm the function suits the opening on the drawing before you order it for a rated assembly.
6) Does the Marks USA 175 Series lever meet ADA requirements for a restroom door?
The 175RAB is ADA compliant, and the lever design is what does it: a lever operates without tight grasping, pinching or wrist twisting, unlike a knob. Combined with the F76 privacy function it is the usual pick for a single-occupancy restroom where the door has to be lockable from inside with an emergency release outside.
7) Is a Grade 2 lever like the Marks 175RAB tough enough for a school or apartment building restroom?
It is certified Grade 2, but the chassis is built past that: cast retractors on bronze roller bearings, and a stainless steel clutch that disengages the levers from the retractor when the lock is set, so someone hanging on a locked lever spins it free instead of bending the spindle. Lever droop and forced-lever abuse are the two things that kill privacy levers in high-traffic restrooms, and the clutch is aimed squarely at both. Levers are solid cast Zamac with a 1/2 inch return on 3-1/4 inch diameter thru-bolted roses.
8) Do I need to order a cylinder or core with the Marks USA 175RAB?
No cylinder is needed. This lever operates on a pushbutton, not a key, so there is nothing to key and no core to buy. What ships with it is the lockset itself: levers on 3-1/4 inch thru-bolted roses with spring-loaded 2 by #10 thru-bolts, and latch #1134 with a 1-1/8 by 2-1/4 inch front and stainless steel nose. Add a strike only if your frame is not already prepped for the ANSI 1-1/4 by 4-7/8 inch square corner strike.
9) What is a simpler option than the Marks USA 175RAB for a door that does not need to lock?
The Marks USA 175RAB locks from the inside by pushbutton. Where an opening only needs a latch, the Cal-Royal CAL30 is a Grade 1 extra heavy duty passage lock covering 1-3/8 inch to 2 inch doors, the Orca Hardware OCL210 is a Grade 2 medium duty passage lockset, and the Dorma CL701 is a Grade 2 non-keyed passage lever. For a lever with no latch at all, the Dorma C501 is a single dummy trim.
10) What is the difference between the Marks USA 175RAB and the Schlage CO-100 privacy lock?
Both are privacy function cylindrical locks fitted to 1-3/4 inch doors. The Schlage CO-100 is a Grade 1 heavy duty standalone electronic lock with a keypad and cylinder options. The Marks USA 175RAB is a Grade 2 mechanical set with solid cast Zamac levers on 3-1/4 inch diameter thru-bolted roses, a 1/2 inch throw latch, and an ANSI 1-1/4 inch x 4-7/8 inch square corner strike.
11) What should I put on a classroom door instead of the Marks USA 175RAB?
The Marks USA 175RAB is a Privacy/Bed/Bath function set and is not a classroom lock. For classroom openings, the TownSteel XCE-2000 is a Grade 1 heavy duty electronic classroom cylindrical lockset with a keypad for 1-3/4 inch to 2 inch doors, the TownSteel XCE-9000 adds classroom intruder function over the same door range, and the Schlage XE360M is a Grade 1 wireless tubular lock in classroom/storeroom function for 1-3/4 inch doors.
12) Can I standardize a whole floor of restrooms and offices on Marks USA 175 Series levers?
For the restrooms, yes. The 175RAB gives you one lever design, one rose, one latch and one ANSI strike prep across every privacy opening, in a finish (US3, US26D or US10B) you can carry through the floor. Where an opening needs to be keyed or held passage, you will be ordering a different function on a different chassis, so plan the schedule by function first and match the lever style and finish second.
How fast can I get the Marks USA 175RAB26D-3/4 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 Marks USA 175RAB26D-3/4 come with a warranty?
Absolutely. The Marks USA 175RAB26D-3/4 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 Marks USA 175RAB26D-3/4?
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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