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 5975-00-064-0321
NSN 5985-01-647-9064
NSN 5935-01-464-1076
NSN 5930-01-198-2069
NSN 5965-00-882-6949
NSN 5910-00-057-4022
NSN 5965-00-868-8711
NSN 6145-00-929-7984
NSN 5950-01-445-2949
NSN 5925-01-032-5389
NSN 6650-01-559-2064
NSN 5895-01-475-1223