Allen screw held in by washer, copper contact for permanent ground, stainless nut cast in.
An item which sacrificially corrodes when coupled to a more noble metal in a conducting medium.
NSN 5935-00-155-4662
NSN 6650-00-654-6950
NSN 6650-01-359-8537
NSN 7035-01-412-8322
NSN 7035-01-327-4456
NSN 5960-00-529-2704
NSN 6130-00-855-2396
NSN 6130-01-160-3886
NSN 6135-00-318-8359
NSN 6610-00-734-3604
NSN 5935-01-034-9303
NSN 6320-01-019-1028