Brunswick Main Spring 1" x 0.025" x 16' Oblong & Pear/Pear Arbor 5/8" (HQ37-R) Diaphragm Thickness: 1/2"

Thickness: 1/2"

Thickness: 25/54"

Diameter of Pin Hole - 5/64"Material - Steel

DimensionsWidth - 1 13/16"Length - 3"Thickness - 3/64"

reproducer bezels and anything requiring a light touch

Brunswick Main Spring 1" x 0.025" x 16' Oblong & Pear/Pear Arbor 5/8" (HQ37-R) Diaphragm Thickness: 1/2"Main Spring for: Amberola Adler Royal Arionola Bent Blue Ribbon Brunswick Butterfly Cheney Claxtonia Crescent Crown Crystola Dayton Emerson Euphonic Geo. P. Bent Hallet and Davis Harmona Kimberly Krasberg Krasco Librola Lois Majestic Markel Meisselbach Nos 16, 17, 18, 19, 19A Meteor Modernola Monroe New Type Portophone Old type United Paramount Perfektone Perkins Pooley Portophone Premier Rishell Roemer Royal Saal Types DD, CC Silvertone Sonora