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 5990-01-093-8328
NSN 5835-01-442-6079
NSN 5999-00-266-3805
NSN 6135-00-050-7189
NSN 6645-01-517-8189
NSN 6105-01-196-0601
NSN 6650-00-393-0447
NSN 5925-01-042-7584
NSN 6610-00-897-5680
NSN 5905-01-095-9354
NSN 5999-00-103-1949
NSN 5965-00-133-0694