Gasket Manufacturing Company, a woman-owned business, has been producing precision metallic and non-metallic stampings for over 60 years. Our in-house tool & die shop and manufacturing facility produces gaskets, shims, conical seals, die cut gaskets, washers, metal forming, light coining and spinning, as well as custom and handmade gaskets. GMC is renowned in the industry for our capability to work with a variety of materials while holding close tolerances, earning our Quality System Certification to ISO 9001:2000 and AS9100:2004 Rev. B. We want your business and are committed to earning it through excellence in quality and service.