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 6645-01-627-4123
NSN 6130-01-441-9072
NSN 5990-01-594-7470
NSN 5985-00-192-7098
NSN 6220-00-191-2877
NSN 6105-00-387-3762
NSN 6610-01-213-9288
NSN 6130-01-411-4849
NSN 6240-00-361-1421
NSN 5920-01-628-0995
NSN 6320-00-790-4844
NSN 6130-01-213-7813