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 5990-01-463-5400
NSN 6320-01-064-0372
NSN 2925-00-211-4469
NSN 4140-01-370-4868
NSN 6110-00-316-5450
NSN 5975-00-826-6648
NSN 5910-00-136-6250
NSN 6620-01-383-6494
NSN 5895-00-079-1314
NSN 5985-00-921-4007
NSN 6610-01-474-5206
NSN 5855-00-337-3679