[SML] What is this cap called?

[billn at peak.org]

> Well, the cap itself isn't broken, per se, but the chain, which is
> riveted on, is broken, so I was looking to see if I could find a new
> cap, and either get a new cap with either a removable chain
> attachment, or something.... I just found it on McMaster: "Mil Spec
> Signal/Power Connector" - and below that are aluminum caps.  But they
> look like they have the same type of wimpy, riveted-on keeper chain.
> (Well, their chain looks stronger than the one I had, but the same
> riveted connection.)

It wouldn't cure any future risk of breaking, but is the chain the right size
that you could use a keychain connector to reconnect the two chain segments?

Another possibility would be to buy a more substantial chain and use that in
place of the current ball type chain.

Bill