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 5945-00-528-1920
NSN 6650-01-272-9746
NSN 5996-00-149-0708
NSN 5920-01-143-5002
NSN 6145-00-236-3226
NSN 5835-00-604-2026
NSN 5950-01-576-5770
NSN 6320-00-343-1798
NSN 5910-01-096-2453
NSN 5905-01-267-1339
NSN 6145-01-103-7276
NSN 7035-01-123-8723