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 6645-01-048-8972
NSN 6610-01-412-9313
NSN 6110-00-100-4775
NSN 6685-01-020-3842
NSN 5990-01-290-7069
NSN 5998-01-419-1502
NSN 5985-01-314-0592
NSN 7035-00-529-3128
NSN 4140-01-247-4837
NSN 5895-01-608-3809
NSN 5999-01-122-4969
NSN 5998-00-144-4326