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 5855-01-144-2939
NSN 6130-00-618-2712
NSN 6150-00-246-6673
NSN 2925-01-057-6993
NSN 6150-01-079-4118
NSN 6110-01-604-8811
NSN 5999-01-566-2163
NSN 6110-01-119-3949
NSN 6685-01-563-3194
NSN 6645-01-272-6987
NSN 4140-01-009-1254
NSN 5930-00-187-5146