Steel watertight door and frame assembly. Quick-acting. Dogs, dog levers, connecting rods and operating handles are grade 316 stainless steel. Dog and handle bushings are self-lubricating. Hinges are MACHALT 538. Gasket is orange silicone rubber A-A-59588 class 3B grade 30. Primer is Formula 150. Drawing 803-6397268A. Ships in 10-12 weeks after receipt of order.