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 5985-01-025-1951
NSN 6220-01-246-7534
NSN 6130-01-272-9765
NSN 6610-00-186-9180
NSN 6220-01-051-3865
NSN 6320-01-495-0512
NSN 5965-00-265-7861
NSN 5990-01-570-5471
NSN 5950-01-149-3092
NSN 5960-01-283-2281
NSN 6240-01-651-2850
NSN 5975-00-715-3710