A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 6135-01-540-5253
NSN 6105-01-067-8377
NSN 5960-01-599-9821
NSN 6220-01-098-8171
NSN 6130-01-350-3585
NSN 4140-01-518-3321
NSN 5998-01-395-1738
NSN 5945-01-322-8580
NSN 5975-01-491-4593
NSN 6645-01-520-6563
NSN 6320-01-229-6479
NSN 5945-00-832-5613