I ordered a safety from Numrich once.  I don't know what they sent, but it fit.  The shaft went in the hole, but it didn't work the safety!  By the time I figured that out, as I had bought it for a friend, it was too late to return it.  I finally got him a proper safety for his 98.  Those folks at Numrich will try to substitute whatever they can on your order, without checking with you!