Product Description
Schlage 33-137 — Modular 6-Pin Conventional Cylinder Plug (C Keyway, 626 Satin Chrome)
This is the replacement plug for a Schlage modular Key-In-Knob/Lever cylinder — the small keyed brass core that carries the pins and takes the key. When a plug wears out, gets picked apart on a rekey, or a customer wants a cylinder rekeyed to a new Classic keyway, you swap the plug rather than buying a whole new cylinder. This one is the 6-pin Classic Standard plug cut for the C keyway in 626 satin chrome.
"Modular" is the part that trips people up. Schlage's modular cylinders are built so the plug is a discrete component you can pull and replace — this plug drops into the Key-In-Knob/Lever modular cylinder housings, not into a mortise or rim cylinder. It is drilled for 6 pins and runs on Schlage's Classic (Obverse) keying, which is the standard open C section — no restricted-keyway adder, no Primus, no Everest. If your building is keyed on plain Classic C, this is the plug that matches it.
Get the keyway right before you order. A plug cut for C will not accept a key from a CE, E, F, or any other section, and it will not work in an Everest or Primus system. If you are matching an existing master-key setup, confirm the keyway stamped on your current plug or on the key bow. Finish here is 626 satin chrome (US26D) — the standard commercial finish that matches most Schlage lever and knob hardware.
Model Number Breakdown
| 33-137 | Schlage modular cylinder plug, 6-pin Classic Standard |
| C | Classic (Obverse) C keyway — standard open section |
| 626 | Satin Chrome finish (US26D) |
Specifications
| Manufacturer | Schlage (Allegion) |
| Part Number | 33-137-C-626 |
| Type | Modular cylinder plug (Key-In-Knob/Lever) |
| Pins | 6-pin |
| Keying | Conventional — Classic (Obverse) Standard |
| Keyway | C |
| Finish | 626 / US26D — Satin Chrome |
| UPC | 43156938209 |
| Sold As | Each |
| Warranty | Schlage Limited Warranty |
Genuine Schlage part. Lock Depot ships new factory Schlage cylinder plugs. Not sure this is the plug your cylinder takes? Call us with your cylinder model and keyway and we will confirm before you order.