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 7035-00-897-7567
NSN 6135-01-607-5478
NSN 5895-01-555-8654
NSN 6130-01-503-1566
NSN 5996-01-188-7934
NSN 6685-00-412-5864
NSN 5990-01-118-8624
NSN 5950-01-290-7144
NSN 7035-01-157-0028
NSN 6145-01-312-8209
NSN 4140-01-152-2672
NSN 5990-01-225-2283