I.G. Marston is a 6th generation, women-owned United States manufacturing company that manufactures non-metallic washers, gaskets and other components. Since 1844, we've produced parts for all kinds of industries including automotive, medical, electrical devices, measuring equipment and gauges, sporting equipment and aerospace. We produce custom non-metallic parts to your specifications as well as provide assistance in material selection by working with our expert material suppliers. VERY FAST, 1-2 day turnaround on orders in Boston-area and all of MA. We are ISO 9001:2015 certified and, as our 93% customer satisfaction rating shows, are committed to excellent quality and on-time delivery.