Sold in quantities of four. Phosphorus-bronze washers

Sizes:

0.375 OD, 0.19 ID, 0.020 thickness

0.375 OD, 0.19 ID, 0.025 thickness

The 0.025” thick washers are my new standard size. They pair best with the spacers I have made in the last few years, so I would recommend the thinner ones if your spacers are from before 2017.