According to the datasheet note #3, the finish. -4's are black, -5's are grey.
& FYI, Digikey still has 14,000+ of the '90s stock as well.
-Alan
Doug,
I use the following Jameco part:
AMP 535090-5 (Jameco 851649, obsolete, still available 5 weeks ARO)
looks like it is replaced by:
AMP 5535043-5 (Jameco 1974464)
AMP 5535043-4 (Jameco 1974456)
*** I don't know the difference between these two.
--John