Used on 2590-01-579-4990;gen iii mine roller system. 1.063" hole diameter washer, sae standard, zinc-plated steel also known as type a washer; finish: zinc plated zinc surface treated
Used on 2590-01-579-4990;gen iii mine roller system. 1.5625" hole diameter washer, steel, zinc yellow-chromate finished steel type: high strength steel