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 6110-01-642-0794
NSN 5950-00-417-7174
NSN 5855-01-398-9548
NSN 6130-00-205-1714
NSN 6645-01-473-3752
NSN 5990-00-263-1289
NSN 5855-01-254-6826
NSN 5950-00-467-9318
NSN 6610-01-022-8669
NSN 5999-00-417-3456
NSN 5975-01-575-1364
NSN 5950-00-921-4519