ZSI Manufacturing Inc. dba American Belleville

About Us

ZSI Manufacturing Inc. (ZSI) is an industrial manufacturing services business that provides manufacturing services and precision machined components for regionally based OEM and industrial manufacturing businesses as well as manufactures and distributes its American Belleville product line, a highly engineered industrial fastener product described as Belleville Springs and Belleville Washers (Belleville disc springs) for various domestic and global markets and industries.