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 5855-00-494-9581
NSN 6110-00-900-3970
NSN 5985-00-778-2888
NSN 5990-01-057-4191
NSN 6150-00-036-5699
NSN 2925-00-060-8292
NSN 6320-00-160-0899
NSN 5925-00-709-9437
NSN 5920-01-653-9512
NSN 5990-00-199-0081
NSN 5950-01-277-1353
NSN 6610-01-020-3764