Sargent C8-DISC 8 & 9 Line Bor...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$118.00
$90.02
Sargent C8-DISC 8 & 9 Line Bored Lock Cylinders - 6-Pin ANSI Grade 1 Certified

Sargent C8-DISC 8 & 9 Line Bored Lock Cylinders - 6-Pin ANSI Grade 1 Certified

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Model: SGT-C8-1 LA 4
From the Conventional Key System Collection
$118.00
$90.02
Selected Finish is

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

$118.00
$90.02
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Sargent C8-DISC 6-Pin ANSI Grade 1 Bored Lock Cylinder with Nickel Silver Keys

Professional Replacement Cylinders for Legacy Bored Lock Systems

Sargent C8-DISC cylinders provide professional-grade replacement solutions for discontinued 8 & 9 Line bored lock systems. These 6-pin cylinders feature ANSI/BHMA A156.5 Grade 1 certification and are supplied 1-bitted with two nickel silver keys. Available in multiple finish options including 4, 15, and BSP to match existing hardware installations for seamless integration with legacy commercial systems.

Professional Features & Benefits

  • ANSI Grade 1 Certification: ANSI/BHMA A156.5 Grade 1 certified construction ensures commercial-grade security and durability for professional applications.
  • 6-Pin Tumbler Configuration: Standard 6-pin tumbler design provides enhanced security with professional keying flexibility for master key systems.
  • Complete Key Package: Each cylinder supplied with two nickel silver keys for immediate installation and operation.
  • Multiple Finish Options: Available in finishes 4, 15, and BSP to coordinate with existing hardware and architectural requirements.
  • Legacy System Compatibility: Designed specifically for Sargent 8 & 9 Line bored lock systems with precise dimensional requirements.
  • Flexible Keying Options: Standard 1-bitted supply with KD- option available for cylinders keyed differently or random configurations.
  • Master Key System Integration: Compatible with master key systems using SARGENT Keyed Order Lead Sheets for proper coordination.
  • Function Variations: C8-1 for all functions except Hotel function (50), and C8-2 specifically for Hotel function (50) applications.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

This replacement cylinder component is designed for use with compatible Sargent 8 & 9 Line bored lock systems. Refer to the parent device installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware before installation.

Professional Applications

  • Commercial Office Building Retrofits
  • Educational Facility Hardware Updates
  • Healthcare Institution Security Upgrades
  • Hotel and Hospitality Properties
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings
  • Industrial Facility Access Points

Why Choose Sargent Quality?

Sargent bored lock cylinders deliver professional-grade reliability with ANSI/BHMA A156.5 Grade 1 certification and 6-pin tumbler construction for demanding commercial applications. Each cylinder includes two nickel silver keys and multiple finish options for seamless integration with existing systems. Engineered for dependable performance where legacy system compatibility and professional security standards are essential.

Product Specs

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

Sargent SGT-C8-1 LA 4 – Frequently Asked Questions

1) Will a Sargent C8 cylinder work in my old 8 Line bored lock, or do I need a whole new lockset?
The C8-DISC cylinder is the replacement cylinder for Sargent 8 and 9 Line bored locks that are no longer produced, so a worn or re-keyed cylinder does not force you to replace the entire lockset. It is built to the dimensional requirements of those bored lock chassis. If the lock body itself is failing, the cylinder alone will not fix it, but for keying changes, lost-key situations, or a damaged plug, this is the part to order.
2) What is the difference between the Sargent C8-1 and C8-2 cylinder?
Function decides it. C8-1 covers every 8 and 9 Line bored lock function except Hotel, and C8-2 is the one made for Hotel function 50. Hotel locks work differently from a standard cylindrical lock (the guest key is shut out when the occupant throws the inside button, and only the emergency or shutout key overrides it), so the cylinder is not interchangeable with the all-function version. Order to the function of the lock on the door, not to the finish or keyway.
3) Which Sargent keyway do I order for a replacement cylinder, and how do I know which one my building uses?
Nine Sargent conventional keyways are offered: LA, LB, LC, LE, LF, LG, LJ, LK and LL. LA is the standard. The keyway has to match the section already in your master key system or the new cylinder will not accept the building keys, and in a facility running a masterkeyed system the keyway is usually stamped on the existing key bow or recorded on the original keying schedule. If you are not sure, pull an existing cylinder and compare the keyway before ordering.
4) Does a Sargent C8 replacement cylinder come keyed, and can I get it keyed alike to my other doors?
Standard supply is 1-bitted with two nickel silver keys, which means it ships with a temporary cut that a locksmith re-pins to your system. Three keying choices are offered: standard keying, KD for keyed different, and KA for keyed alike, so a run of doors that all need to open on one key can be ordered that way. For cylinders that have to fold into an existing master key system, Sargent coordinates that through their Keyed Order Lead Sheets.
5) Is the Sargent C8 bored lock cylinder a 6-pin, and will it take my 6-pin masterkeyed system?
Six pins, which is what a masterkeyed commercial system normally needs. A 5-pin cylinder cannot carry the extra chamber a master key wafer requires, so the 6-pin build is what lets these drop into a facility running masters and sub-masters. It is a conventional Sargent key system cylinder, not an interchangeable core.
6) What finishes does the Sargent C8 cylinder come in for matching existing door hardware?
Three finishes: 04 satin brass clear coated, 15 satin nickel plated clear coated, and BSP black suede powder coat. In practice you match the cylinder collar to the lock trim already on the door, so 15 goes with satin nickel and satin chrome-family trim, 04 with brass, and BSP with black hardware. On an older building where the existing locks have aged, matching the original spec number rather than the visual appearance is the safer call.
7) Is the Sargent C8 cylinder ANSI Grade 1?
Grade 1 to ANSI/BHMA A156.5, which is the top commercial grade for auxiliary locks and cylinders and the level most institutional and government specifications call for. That matters on a retrofit: swapping in a lower-grade cylinder can drop the whole opening below the grade the original lockset was specified at, even though the lock body never changed.
8) I manage a hotel with Sargent locks on the guest rooms. Can I standardize on one replacement cylinder for the whole property?
Not on one part number, no. Guest room doors running Hotel function 50 take the C8-2 cylinder, while corridor, back-of-house, and office doors on other 8 and 9 Line functions take C8-1. What you can standardize is the keyway and finish across both, so hold one keyway (LA is the standard section) and one finish, then stock the two function versions. Keying alike is available where a group of doors should share a key.
9) Is this Sargent cylinder for a bored lock or a mortise lock?
Bored lock. The C8 is the cylinder that fits the 8 and 9 Line cylindrical bored lock chassis, and it is not a mortise cylinder. A mortise lock uses a threaded-shell cylinder that screws into the lock case and drives a cam, so the two are not interchangeable. If you are pulling a threaded cylinder out of a lock case that sits inside the edge of the door, you need a Sargent mortise cylinder instead.
10) Do I get keys with a Sargent C8 replacement cylinder or do I have to order those separately?
Two nickel silver keys come with each cylinder. Nickel silver is the normal material for a commercial change key because it wears better in a high-cycle lock than brass. Bear in mind the cylinder ships 1-bitted, so those keys work the temporary factory cut, not your building key. Once a locksmith re-pins the cylinder to your system, they will be cut to the new combination or replaced with keys from your existing stock.
How fast can I get the Sargent SGT-C8-1 LA 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 Sargent SGT-C8-1 LA 4 come with a warranty?
Absolutely. The Sargent SGT-C8-1 LA 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 Sargent SGT-C8-1 LA 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
Why buy the Sargent SGT-C8-1 LA 4 from ZenSupply?
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