Jul 21, 2026 - 01:12 PM
We’ve provided several answers to questions related to CompX National C9100 USPS-L-1172C Mailbox Lock , see some other helpful Q&A related to this product.
Question: How does the mailman get into my locked mailbox?
Answer: The mailman has a master key or an access code provided by the postal service that allows them to open locked mailboxes or centralized mailbox units. This key is only available to authorized postal workers for security reasons.
Question: What kind of mailboxes is this lock typically used for?
Answer: It is typically used for exterior pedestal-mounted neighborhood mailboxes. These are the standard mailboxes used in many communities, and having a c9100 lock designed specifically for them ensures a proper fit and function.
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