Wilco Inc., Wichita, KS, is a stocking distributor of 4130 aircraft-quality steel sheets, and round bars. The company maintains 4130 sheet and round bar in stock (250,000-300,000 lb. on hand at all times), allowing customers to produce parts without investing in inventory or in time waiting for delivery. That includes most sheet thicknesses in 36 by 72-in. sheets as well as 18 by 72-in. sheets. The 18 by 72-in. sheets are within the size limits to ship on both UPS and FedEx, meaning that they can be sent overnight if required. Bar inventory ranges from 0.125-in. round to 1-in. round, in 12-ft. lengths. There is no minimum order, and Wilco can cut sheet or bar as required.