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 6130-01-512-3228
NSN 6110-00-223-2081
NSN 5965-00-993-5439
NSN 5990-01-009-3634
NSN 6105-01-454-4736
NSN 6610-00-930-6850
NSN 6685-01-272-7857
NSN 5985-01-456-9788
NSN 5975-01-565-4654
NSN 2925-01-556-0333
NSN 2925-01-189-4272
NSN 5950-00-054-7594