Tuning Pin Bushings- $11.84 Per 100 or $25.90 Per 250
Hardwood; 7/16" diameter, 1/4" center hole
346A 1/4" high
346B 5/16" high
346C 3/8" high

Tuning Pin Bushings for Modern Pianos
Hardwood; 13/32" diameter, 7/32" center hole.
345A 1/4" high
345B 5/16" high
345C 7/16" high

NOTE: Many pianos manufactured since the mid-60's have used Tuning Pin Bushings with a smaller diameter.