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 6685-00-117-5508
NSN 5990-01-414-2778
NSN 6650-01-651-9502
NSN 6610-01-361-9988
NSN 6685-01-447-3859
NSN 5945-01-290-9002
NSN 6685-01-468-9517
NSN 6110-01-578-8070
NSN 5998-01-585-1432
NSN 5855-01-285-3483
NSN 5999-01-007-6804
NSN 7035-00-104-7613