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 6685-01-095-5554
NSN 6145-01-265-3807
NSN 5999-01-095-4859
NSN 5945-01-087-0165
NSN 5950-01-538-9493
NSN 5990-01-233-4178
NSN 5990-00-719-4947
NSN 6610-01-524-5998
NSN 5999-01-371-5608
NSN 5910-00-263-7884
NSN 5945-00-269-5375
NSN 5996-01-226-7707