Receptacle Rating

[superdave02]

I have a Leviton receptacle from about 1970 connected to aluminum wiring. This 15 amp receptacle is original just like the wiring. The receptacle only says Leviton and made in America on it. Curious if this outlet is also rated for aluminum?

 

[LarryFine]

Likely not, as the issues weren't known then.

 

[superdave02]

my bad, I meant to say is it also rated for copper?

 

[GoldDigger]

AFAIK there were never device terminations which were rated for Al only. If no mention of metal is made, assume Cu.
Note that some Al wirenuts are rated only for either Cu or Cu and Al combined, but not for only Al wires.
(see https://forums.mikeholt.com/threads/aluminum-wire-connections.2561353/#post-2673656 )