Via Route 93
Take 93 to route 111 (Exit 3 in Windham, NH) Follow route 111 into Hudson (West). After 9.2 miles, turn left at lights onto Lowell Road. Follow Lowell Road for 1.5 miles, turn right onto Executive Drive (just after Tire Warehouse). Follow Executive Drive to the stop sign, turn left onto Wentworth Drive. At the next stop sign, turn right onto Hampshire Drive, and Sparton will be the first driveway on the right..
Via Route 3 (F.E. Everett Turnpike)
Take route 3/Everett Turnpike to Exit 2 in Nashua, NH. Follow exit ramp across Sagamore Bridge over the Merrimack River, and change lanes to the left most lane. At the lights follow road left onto Lowell Road, and turn left at the first traffic light, on Flagstone Drive, just before Dunkin Donuts. Follow Flagstone Drive down the hill, into the industrial park, and turn right on Hampshire Drive. Watch for the Sparton sign on the left side, and our two tone brown block building. It will be the second building on your left.