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Atrium German Profile Cylinder with Crescent Knob – 31.5/31.5mm, Antique Brass

Atrium German Profile Cylinder with Crescent Knob – 31.5/31.5mm, Antique Brass

SKU: 413131120-AB

Replace with 413131020
  • Type: German Profile Cylinder with Crescent Knob
  • Inside Length: 31.5mm (1-1/4")
  • Outside Length: 31.5mm (1-1/4")
  • Overall Housing Length: 63mm (2-1/2")
  • Finish: Antique Brass (limited stock)
  • Standard 360 degree solid brass cylinder
  • Schlage compatible and rekeyable
  • Compatible with Atrium, Fuhr, and Ferco doors
  • Does not have a tarnish resistant finish
  • Note: This item has been discontinued – replace with 413131020
Discontinued / No Longer Available
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Atrium German Profile Cylinder – Antique Brass (413131120-AB)

This German Profile cylinder features a crescent knob design and a standard 360 degree solid brass construction. It is Schlage compatible and can be rekeyed for added convenience. This cylinder was commonly used by Atrium, Fuhr, Ferco, and other manufacturers.

The cylinder measures 31.5mm on both the inside and outside, with an overall housing length of approximately 2-1/2 inches (63mm). The antique brass finish gives it a classic appearance, though please note this finish is not tarnish resistant.

Technical Information

  • Inside Length: 31.5mm
  • Outside Length: 31.5mm
  • Overall Housing Length: 63mm (2-1/2 inches)
  • Cylinder Type: 360 Degree
  • Keyway: Schlage Compatible

Notes

  • This cylinder does not have a tarnish resistant finish
  • Limited stock available in Antique Brass

Replaces / Replaced by

  • This item has been discontinued – replace with 413131020, which can be converted to a 360 degree cylinder

Related Parts

  • 413131020 – Replacement cylinder (can be converted to 360 degree)

Sold individually.

Fill out our MPL form or call us to ensure accurate purchasing and correct fit.

Frequently Asked Questions

Can I rekey this cylinder myself?

Yes, this cylinder is Schlage compatible and rekeyable. You can have it rekeyed by a locksmith or use Schlage-compatible rekeying kits.

What is the difference between a 90 degree and 360 degree cylinder?

A 360 degree cylinder allows the key to be turned a full rotation, while a 90 degree cylinder only turns a quarter turn. The replacement part 413131020 can be converted from 90 to 360 degrees.

Will this cylinder work with my Fuhr or Ferco multipoint lock?

Yes, this is the same German Profile cylinder used by Atrium, Fuhr, Ferco, and similar manufacturers.

At mplocks.com, we strive to provide fast, reliable, and fairly priced shipping. Below you'll find our standard shipping details, important notes, and packing practices.

Standard Shipping Rates

Shipping applies to the contiguous U.S. (orders to Alaska and Hawaii require a custom quote):

  • $11.95 – USPS First Class (5–10 business days)
  • $12.95 – USPS Priority Mail (3–6 business days)
  • $19.50 – UPS Ground (2–5 business days)

📦 Rates typically cover packages up to 4 lbs. Oversized or heavier items may incur additional charges.

Processing Times

  • Most orders ship within 2–5 business days of purchase.
  • If your order is delayed, we'll notify you promptly.

Important Notes on Shipping Costs

  • Certain items may have higher shipping costs due to weight or dimensions.
  • We reserve the right to adjust shipping fees. If this applies to your order, we'll contact you for approval before proceeding.
  • If you choose not to accept revised shipping charges, we may cancel your order at our discretion.

Backorders & Billing

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  • This includes orders that contain backordered items.

Our Packing Standards

We take great care to ensure your order arrives safely and securely.

  • Whenever possible, we use recycled paper, cardboard, and eco-friendly packaging materials.
  • Many of our products are purchased in bulk and may not include retail packaging or barcodes. In these cases, items may be repackaged in secure, plain boxes.
  • Hardware ships in retail or contractor-grade packaging when available.
  • Every item is inspected prior to shipping, and additional packing is used if needed.

Quality Guarantee

All items are brand new unless specifically noted. If something is not right, we'll work to make it right—through repair or replacement.

⚠️ Please note: shipping costs are non-refundable.

If you have questions about shipping rates, timelines, or packaging, please contact us before placing your order.

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