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 6320-01-481-4871
NSN 5990-01-408-4188
NSN 6685-00-089-7974
NSN 5999-01-010-7431
NSN 5930-01-265-2340
NSN 5945-01-320-4383
NSN 5895-00-603-9840
NSN 5965-01-106-4969
NSN 5920-00-969-2350
NSN 6650-01-094-9378
NSN 5925-00-081-9135
NSN 6150-01-440-9213