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 5960-01-411-5899
NSN 6240-00-031-3112
NSN 5950-01-286-5170
NSN 6150-01-316-4881
NSN 6645-00-397-2210
NSN 5920-00-206-3595
NSN 5835-01-384-3206
NSN 5930-01-354-7030
NSN 5990-01-442-3520
NSN 2925-00-247-1242
NSN 6145-01-360-7070
NSN 6135-01-380-4396