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Keys and security parts
All Containers›Shop by use case›Keys and security parts›The statute›What it coversShop all keys and security →
The statute

What it covers

By Dwight Davis, Founder

On this page14
Suited to, adopted by, and in use on. Three qualifiers.

The description

Any key suited to any lock adopted by the Post Office Department or the Postal Service and in use on any of the mails or bags thereof, or any key to any lock box, lock drawer, or other authorized receptacle for the deposit or delivery of mail matter.

Three qualifiers in the first limb

Suited to a lock, adopted by the Postal Service, and in use on the mails or bags. All three.

Suited to is the broadest of them

A key need not be the official key; it has to be suited to the lock. Which reaches a key that happens to work.

And adopted by narrows it sharply

The lock has to be one the Post Office Department or the Postal Service adopted. A commercial padlock is not.

And in use on the mails narrows it again

So a lock adopted historically and no longer in use is outside the first limb as written.

The second branch is about receptacles

A key to any lock box, lock drawer, or other authorized receptacle for the deposit or delivery of mail matter.

Which is the mailbox and post box case

And is described in terms of the receptacle rather than of the lock being adopted.

So the section reaches two kinds of key

One defined by the lock it fits and one defined by what the lock secures.

And none of this group's four leaves is either

A key blank, a lock pin, a padlock part and a tumbler spring are not keys to postal locks or receptacles.

A key blank is the closest and is still outside

Because a blank is not yet suited to any lock, which is what makes it a blank.

Which is a real distinction and not a technicality

The first limb turns on being suited to a lock, and an uncut blank is not suited to anything.

Nothing here says what is or is not lawful for anyone

The section is quoted as the federal provision that names a key, and the application of it is not determined on these pages.

Which is why the rest of the property is about jars

Because that is the question this catalog can answer.

References

18 U.S.C. 1704, which provides in part: "Whoever steals, purloins, embezzles, or obtains by false pretense any key suited to any lock adopted by the Post Office Department or the Postal Service and in use on any of the mails or bags thereof, or any key to any lock box, lock drawer, or other authorized receptacle for the deposit or delivery of mail matter"; and "Whoever knowingly and unlawfully makes, forges, or counterfeits any such key, or possesses any such mail lock or key with the intent unlawfully or improperly to use, sell, or otherwise dispose of the same"; and "Shall be fined under this title or imprisoned not more than ten years, or both." This is a theft and forgery provision and says nothing about containers, labeling or packaging. Nothing on these pages addresses the lawfulness of making, holding or selling any key or key blank, locksmith licensing, restricted keyways or key duplication. law.cornell.edu
Written from 18 U.S.C. 1704 and from the catalog as it stood on 19 October 2026. That section is a theft and forgery statute about keys to Postal Service locks and says nothing about containers, labeling or packaging; it is quoted because it is the federal provision that names a key. Nothing here addresses the lawfulness of making, holding or selling any key or key blank, locksmith licensing, restricted keyways, key duplication, or whether any mark has legal effect, and nothing here would assist anybody in defeating a lock. This shelf is shared identically by nine groups and the sewing notions property enumerates the inventory.