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 5999-00-195-4364
NSN 2925-01-654-4621
NSN 6130-01-316-4791
NSN 5920-01-218-6191
NSN 6685-01-337-0582
NSN 6645-00-849-4429
NSN 6145-01-465-3415
NSN 6240-01-260-8149
NSN 6320-01-268-3072
NSN 5915-00-076-3909
NSN 5935-01-415-6544
NSN 5835-01-495-0595