This Set of (4) Rubber Feet set for Radio Gear, are very high quality Rubber Feet, and have the washer embedded in them. This set of rubber feet have a softer rubber compound and have a non skid grip on the surface of a table or bench.
I also have larger sets offered in another listing at even a better price if you need more! They are 3/4 inch in diameter and 13/32 inch high. They have a 5/32 inch hole.
These quality feet are found on many different types of radio gear including Collins and Hallicrafters and many other radios and accessories.
Original rubber feet on vintage radios will become cracked and hard and tend to let the radio slide rather than keep it in place.
At this price, why not replace the old rubber feet with brand new high quality replacements
Note: I also have Aluminum Spun, black powder coated Risers and Stainless hardware in another listing. The risers are tapered and have a bevel on the bottom at the same angle as the tilt of the radio so when they are paired with the rubber feet your radio will sit flush.