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 5935-00-850-2251
NSN 2925-00-467-7150
NSN 6645-00-010-3054
NSN 6150-01-334-7625
NSN 6145-01-561-3857
NSN 2925-00-041-0439
NSN 5990-01-581-5103
NSN 5925-00-952-5824
NSN 5905-01-100-4759
NSN 5925-01-310-9632
NSN 5999-00-001-5985
NSN 5930-01-147-7912