MR1 Key Blank – Mailbox Keyway – NP – 10-Pack – ILCO

The ILCO MR1 key blank is a nickel-plated brass key blank manufactured in the USA, engineered for duplicating keys used in Metal-Rousseau mailbox and cabinet locks. Trusted for its durability and smooth cutting performance, this key blank is ideal for locksmiths and key duplication professionals.

🔑 Key Features:

• Part Number: ILCO MR1

• Material: Nickel-plated brass

• Pack Size: 10 uncut key blanks

• Use Case: Mailbox and cabinet key duplication

• Made In: USA

🔁 Manufacturer Cross-References:

• Curtis: RS-2, RS2

• Dominion: MR1

• Silca: MTR1

🏢 Fits Products by the Following Manufacturers:

• Metal-Rousseau — Mailbox locks using key codes between:

  • B0001–B5000

  • E0001–E5000

  • X0001–X5000

⚠️ Important Notes:

• Includes 10 uncut key blanks

• Must be cut by a professional locksmith or hardware store

• Always verify your current key profile by comparing to real-size line drawings