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 6685-00-930-2771
NSN 5975-01-095-5122
NSN 5985-01-421-4559
NSN 7035-01-429-0431
NSN 2925-00-859-6116
NSN 6240-01-444-3508
NSN 6145-00-263-6989
NSN 5945-00-406-3455
NSN 2925-01-149-2865
NSN 5895-01-446-3420
NSN 6150-01-406-4984
NSN 6145-01-441-1201