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 6645-01-075-7722
NSN 5930-01-617-2060
NSN 6610-01-446-5975
NSN 6240-01-401-5340
NSN 5985-01-484-0054
NSN 6135-01-322-4655
NSN 6685-01-508-3469
NSN 5996-01-206-4104
NSN 5920-00-224-4393
NSN 5920-01-415-6046
NSN 6645-00-884-5845
NSN 6610-01-468-0679