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 5915-01-426-4849
NSN 6130-01-367-6010
NSN 5998-01-037-3967
NSN 6645-00-411-3733
NSN 5996-01-531-6491
NSN 6220-00-340-1313
NSN 6685-01-229-9844
NSN 6240-01-512-1856
NSN 5835-01-357-1247
NSN 6610-01-446-5975
NSN 6150-01-341-6295
NSN 6145-00-695-9568