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 5855-00-058-1293
NSN 6650-01-463-2274
NSN 6220-01-463-8673
NSN 5998-01-605-3572
NSN 6620-00-085-8907
NSN 5920-01-102-9458
NSN 6105-01-144-5931
NSN 6145-01-432-2066
NSN 5835-00-279-6626
NSN 6650-00-254-8966
NSN 6145-01-460-3449
NSN 5985-01-142-3431