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 5985-01-080-7339
NSN 5920-01-309-9216
NSN 5975-01-355-4679
NSN 4140-00-778-1836
NSN 5905-01-270-8064
NSN 6135-00-120-1027
NSN 5996-01-182-6461
NSN 5920-00-170-4247
NSN 6110-01-589-4243
NSN 5925-01-031-0663
NSN 5920-01-113-4041
NSN 6220-01-634-0660