0.060" thick, 1-3/8" OD, 3/8” ID. I'm Howard Gustafson and I've been a player piano technician since 1985.
10 NOS Kimball Valve Seats, Phenolic, 1-3/8" OD, 3/8" ID, 0.060" Thick
1 NOS Player Piano Valve Disc, 11/16" OD, 5/32" ID, 1/16" Thick, Phenolic
100 NOS Player Piano Valve Discs, 11/16" OD, 1/8" Thick, Phenolic
1 NOS Valve Disc , Phenolic, 3/4" OD, 5/32" ID, 0.060" Thick
1 NOS Phenolic Outer Valve Seat for Simplex 3 Tier Player Piano 7/16" ID
10 NOS Player Piano Valve Discs, 11/16" OD, 5/32" ID, 1/16" Thick, Phenolic