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 5950-00-786-1865
NSN 5945-01-553-8518
NSN 6685-01-441-0854
NSN 6135-01-059-4055
NSN 5930-00-080-7571
NSN 6145-00-223-2885
NSN 4140-01-010-0615
NSN 5996-01-054-3226
NSN 6220-01-025-6140
NSN 6150-01-367-5730
NSN 2925-00-816-8765
NSN 6240-01-555-5980