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 5985-01-073-5602
NSN 6130-00-865-4821
NSN 6685-00-844-4606
NSN 6145-01-270-6755
NSN 6620-01-555-5218
NSN 6645-00-394-8924
NSN 6240-01-254-9448
NSN 6620-00-133-2633
NSN 5895-01-578-4649
NSN 5960-01-394-0750
NSN 5910-01-586-6538
NSN 6620-01-147-5615