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 6645-01-111-3758
NSN 4140-01-246-4267
NSN 5965-00-862-3295
NSN 6135-00-932-3136
NSN 5950-01-391-9097
NSN 6685-01-047-5648
NSN 5930-01-519-2590
NSN 6620-01-333-0406
NSN 6645-01-660-3097
NSN 5925-01-069-6960
NSN 4140-01-618-4208
NSN 6610-01-025-2876