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 6150-01-051-6489
NSN 5920-00-226-7148
NSN 6320-01-090-8296
NSN 5935-01-406-1296
NSN 5835-01-619-6268
NSN 5910-01-364-1166
NSN 5965-00-445-1843
NSN 2925-01-149-2865
NSN 6685-01-399-8584
NSN 2925-00-233-5644
NSN 5915-00-193-1440
NSN 5960-00-051-6159